Hi, I’m Scott Paul, an exterior restoration contractor and business owner with over 30 years of experience in deck cleaning and prep. My reviews and helpful tips are based on my extensive background as a wood and deck restoration contractor, as well as actual hands-on testing. I’m here to present you with the best product choices to ensure your deck looks great and performs well for years.See here for more info about me
- Oxygenated deck cleaners using sodium percarbonate are the top choice for most decks, offering effective mold removal and environmental safety.
- Always follow deck cleaning with a wood brightener to neutralize pH, open wood pores, and properly prep the surface for staining.
- Bleach-based cleaners can damage wood lignin, making oxygenated formulas like Restore-A-Deck and Defy Wood Cleaner the better long-term option.
- Use a pressure washer at low PSI, ideally below 1,500 PSI, to avoid damaging wood fibers during the cleaning process.
- After cleaning and brightening, let wood moisture drop below 15% before applying any deck stain or sealer to ensure proper adhesion.
Best Deck Cleaners for 2026 Tested and Reviewed
With so many deck cleaning solutions available in 2026, it can be tough to know which one will clean effectively without damaging your wood. Over the past 30 years, I’ve researched and tested a wide range of deck cleaners, comparing the pros and cons of each. If you’re still unsure which deck cleaner is right for your project, I’m here to guide you and help you make the best choice for your wood and deck restoration needs.Just post a comment or question below, and I’ll reply as soon as possible.
Keeping your deck clean is one of the most important steps in maintaining its appearance and extending the life of your wood. Over the past 30+ years, we’ve tested dozens of deck cleaning products on everything from older pressure-treated wood to hardwoods like Ipe.
The right deck cleaner will remove dirt, grime, mold, and oxidation without damaging the wood fibers. The wrong one can do more harm than good.
Below are the best deck cleaners based on real-world use, effectiveness, ease of application, and overall results.
🔥 Quick Answer: What Is the Best Deck Cleaner?
- Best Overall Deck Cleaner: Restore-A-Deck Cleaner
- Best for Prep Before Staining: Gemini Restore-A-Deck Cleaner
- Best for Mold & Mildew: RAD Mildew Cleaner & Preventer
If you want a safe, effective option for most decks, stick with an oxygenated wood cleaner.
Steps to Prep Your Deck With a Wood Deck Cleaner
Gather Your Deck Cleaning Solutions and Equipment
- Water! Yes, this is basic, but you cannot clean a deck without a water source.
- Pump Sprayer for applying your deck cleaning solution.
- Deck scrub brush to help agitate the cleaner
- Pressure Washer – Not 100% needed, but it sure makes your deck cleaning faster and easier.
- Gloves, goggles, and masks.
- A Quality Deck Cleaner!
How Wood Deck Cleaners Work on Mold and Mildew
Exterior wood and deck cleaners are designed to clean and prep your wood before applying a fresh coat of stain. These cleaners come in a variety of concentrates, each with its own blend of ingredients. The main job of a deck cleaner is to remove contaminants like dirt, oxidation (graying), mold, algae, and sometimes deteriorated stains that have failed.
However, deck cleaners are not meant to strip old stains completely—a deck stain stripper is required for that job. Most deck cleaners contain caustic soaps that help with scrubbing or pressure washing the wood during prep. Since these cleaners typically raise the wood’s pH, it’s important to follow up with an acidic deck brightener to restore the wood to a neutral pH, ensuring it’s properly prepped for staining.
Wood Deck Cleaning Products Compared: 2026 Reviews
Oxygenated Deck Cleaner
Oxygenated deck cleaners have gained popularity over the past decade, thanks to their effectiveness and environmental friendliness. The key active ingredient is sodium percarbonate, an EPA-registered compound for mold and mildew removal. These cleaners are typically powdered concentrate, mixed with water before being applied to the wood. Best used with a garden pump sprayer, they can be scrubbed in or lightly pressure-washed off.
My Pros:
- Environmentally safe and effective
- Registered by the EPA for mold removal
- Cost-effective
- Excellent at removing contaminants like dirt, grime, and mold
My Cons:
- Requires mixing with water to the desired concentration
- Active for only 30 minutes
- Warm water may be necessary for optimal results
Examples:
- Restore-A-Deck Kits
- Defy Wood Deck Cleaner
- Gemini Restore Kit
Bleach-Based Deck Cleaner
Historically, many deck cleaners relied on sodium hypochlorite, the same active ingredient found in bleach. These cleaners can “whiten” the wood and effectively remove dirt and grime. However, recent studies have shown that bleach-based cleaners may cause damage to the wood’s lignin, which is essential for maintaining the wood’s structure.
My Pros:
- Premixed in liquid form for easy use
- Excellent for mold and algae removal
My Cons:
- Can damage the wood’s cellular structure
- Generally an average cleaner when compared to newer options
Examples:
- 30 Second Deck Cleaner
- Olympic Deck Cleaner
- Clorox Deck Cleaner
- Cabot Wood Cleaner
4 Pro Deck Cleaning Tips for Wood and Composite Decks
Wood restoration can be among the most misunderstood and challenging projects for do-it-yourself homeowners. Remember that a new deck sealer will fail prematurely if the wood is not appropriately cleaned beforehand.
1. Always Prep Before Staining
When wood becomes weathered, it needs to be cleaned before sealing. Cleaning a wooden deck can be difficult for a homeowner who is uneducated or new to the process. The degree of deck prep will vary based on your wood’s condition and age. If you have any questions, please ask me in the comments below. Pictures of your wood deck would help me offer the proper advice for cleaning your deck.
2. Deck Clean at a Low-Pressure Wash
Using a pressure washer can be an effective method. However, you must also use the proper cleaners to remove the dirt and grime in the wood. Most people make the mistake of using too much water pressure when using a pressure washer. Wood is pretty soft and can be damaged easily from excessive water pressure.
Turning the pressure down on the washing unit or switching to a spray nozzle with a larger orifice will provide a lower pressure suitable for cleaning. If you use a quality wood cleaner, lower pressure will still give you a deep clean. Wood cleaners break up dirt and debris, allowing less pressure to be adequate for cleaning the wood without risking damage.
My Pro Tip on Pressure Washers: PSI (pounds per square inch) is often misunderstood. When using a 3500 PSI pressure washer, the “3500” would only be at the very tip when it comes out. If you are washing at a safe distance of 8-12 inches away, your PSI will drop roughly in half and is safe for wood. Another important tip is that GPM (gallons per minute) is far more important than PSI. When washing with a GPM of 2-3 per minute, you will wash twice as fast as a machine rates at 1-2 GPM. Use a gas-powered pressure washer. Electric washers are not as effective at cleaning.
3. Always Use a Brightener after Cleaning
Wood deck brighteners, also called deck neutralizers, are acid-based products that neutralize deck cleaners and help lower the pH level, making the wood neutral. This opens the wood pores and brightens the wood, bringing out the grain’s natural beauty. A simple application of deck brightener after cleaning is all needed to complete the proper prep work for an outstanding stain finish that will last.
My Pro Brightening Tip: After applying the wood brightener, let sit for 10-20 minutes and then rinse well until soap suds disappear
4. Let the Wood Dry Before Staining
4. Let the Wood Dry Before StainingAfter the wood has been cleaned, brightened, and rinsed thoroughly, it must dry for a few days. You can check the wood with a moisture meter, but it isn’t necessary. You don’t want to apply a wood sealer to the deck until the moisture level is below 15%. If you don’t have a moisture meter, waiting a few days is usually adequate before sealing.
My Pro Staining Tip: If using the Restore-A-Deck Wood stains, you can skip the drying part. These stains can be applied to a damp or dry deck!
Once your deck is properly cleaned and prepped, the next step is choosing the best deck stain to protect and enhance the wood.
What Is the Best Cleaner for Wood Decks in 2026?
My research has narrowed the field to four top deck cleaning solutions:
- Restore-A-Deck cleaner and brightener kit
- Gemini Restore cleaner kit
- Defy Wood Cleaner
- RAD Mildew Cleaner and Preventer
In general, I like oxygenated deck cleaners. They do a great job and are usually less expensive. Read my reviews to find the best cleaner to make your deck shine!
My #1 Best Deck Cleaner | My #2 Best Deck Cleaner | My #3 Best Deck Cleaner | My Honorable Mention |
 |  |  |  |
From: $64.99 *Ships Free | From: $64.99 *Ships Free | From: $35.99 *Brightener Additional | From: $49.99 *Ships Free |
Top-Rated Wood Deck Cleaner Reviews for Mold and Mildew
1. Restore-A-Deck Cleaner and Brightener Kit
Restore-A-Deck is the first manufacturer to offer a deck cleaner and a deck brightener in the same kit. Restore-A-Deck wood deck cleaner comes in a powdered concentrated formula. Each 2-pound container makes 5 liquid gallons. Pour each product into a 5-gallon container and add water to dissolve the powdered concentrate.
- Manufacturer: Restore-A-Deck
- Product Type: Powdered concentrate kit containing deck cleaner and deck brightener
- Available Sizes: 2-pound container (makes 5 gallons)
- Consumer Rating:
- My DeckStainHelp.com Rating: 9.0/10
- Purchase on Amazon Here: Restore-A-Deck Cleaner Prep Kit
- Purchase Direct for Less Here: Purchase Here
2. Gemini Restore Cleaner Kit
Gemini’s Restore cleaner and brightener system is a powerful, “eco-friendly” two-part restoration system. It’s a 100% biodegradable concentrated powder formula that can prep wood surfaces for re-coating with a wood or deck stain and restore weathered gray wood to its natural color. Restore-A-Deck private-labels this for Gemini.
- Where to Buy: Gemini Restore Cleaner Kit
- Product Type: Powdered concentrate kit containing deck cleaner and deck brightener
- Available Sizes: 2-pound container (makes 5 gallons)
- Consumer Rating:
- My DeckStainHelp.com Rating: 9.0/10
- Purchase Direct for Less Here: Purchase Here
| Image | Title | Price | Add to cart | Rating |
|---|---|---|---|---|
 | $69.99 |
3. Defy Wood Cleaner
Defy Wood Cleaner is a safe alternative to chlorine bleach-based cleaners. It removes general dirt, grime, and UV graying while restoring the wood’s natural color tones. It’s an environmentally safe, powdered, oxygen-based concentrate that makes 5 liquid gallons per container.
- Where to Buy: Defy Wood Cleaner
- Product Type: Powdered concentrate
- Available Sizes: 2-pound container (makes 5 gallons)
- Consumer Rating:
- My DeckStainHelp.com Rating: 8.5/10
- Purchase on Amazon Here: Defy Wood Cleaner
- Purchase Direct for Less Here: Purchase Here
| Image | Title | Price | Add to cart | Rating |
|---|---|---|---|---|
 | $47.99 |
Honorable Mention Deck Cleaners for Mildew Removal and Prevention
RAD Guard RTU (Ready-To-Use formula) is a no-rinse cleaner and preventative that is safe and effective for removing and preventing stains caused by mold, mildew, and algae on exterior surfaces and exterior wood or deck stain coatings.
My Pro Tip: RAD Guard RTU is not used to prep wood for wood or deck stain application. The primary goal is to remove mildew or algae stains and prevent them from returning.
- Where to Buy: Restore-A-Deck
- Product Type: Mildew and Algae Cleaner and Preventer
- Available Sizes: 1 Gallon
- Consumer Rating:
- My DeckStainHelp.com Rating: 9.5/10
| Image | Title | Price | Add to cart | Rating |
|---|---|---|---|---|
 | $49.99 | |||
 | $119.99 |
📊 Deck Cleaner Comparison Table
| Product | Type | Strength | Best For |
|---|---|---|---|
| Restore-A-Deck Cleaner | Oxygenated | Medium | Overall cleaning & prep |
| Defy Wood Cleaner | Oxygenated | Medium | Pre-stain prep |
| RAD Mildew Cleaner & Preventer | Eco-Friendly | Light | Mildew cleaning |
Innovations in Deck Cleaning Technology
Pressure washers, scrub brushes, and old-fashioned elbow grease are the most popular deck cleaning tools. However, if you dread the thought of scrubbing your deck, you’re not alone — and you may be in luck.
RoboDeck has developed the deck-cleaning equivalent of the Roomba, designed to make cleaning and maintaining your deck easier than ever. The robotic deck cleaner maps your outdoor space, similar to how Roomba maps your home. Then, it uses built-in sensors and AI to navigate around stairs and ledges while cleaning. It can also identify problems like loose boards or screws.
Safety Tips When Using Deck Cleaners
Before you start cleaning your deck, set yourself up for success by protecting yourself and your outdoor space. Check out the following safety considerations to keep top of mind when planning a deck-cleaning project:
- Move outdoor furniture and decor. Make sure your deck is empty before you start cleaning to avoid damaging furniture or staining outdoor cushions.
- Cover up. Use gloves, long sleeves, and long pants to avoid splatters, and always wear protective glasses. Remember, even the best deck cleaners can cause skin irritation if they get on your skin or in your eyes. Pressure washers can loosen grime and splinters from boards, which could cause injury.
- Store your leftover materials properly. Make sure you store any leftover deck cleaning solutions in their original containers, with the lid screwed on tightly and the bottles placed in a well-ventilated area far from any open flames.
Watch Our Deck Cleaner Video Guide With Pro Tips
❓ Deck Cleaner FAQs
Do I need a Deck Cleaner?
Yes! I highly recommend using a deck cleaning solution to quickly remove dirt and stains while prepping your wood deck for a new coat of deck stain or sealant. Deck cleaners prep your deck surface so it’s clean, undamaged, and in the best possible condition for your next step. Deck Cleaners are more effective and safer than general cleaner options like TSP or Bleach.
Should I Pressure-Wash or Use Deck Cleaner?
It’s actually a good idea to do both. You’ll want to use a good deck-cleaning solution, but you can also speed up the process by using a pressure washer to clean the solution off the deck once it’s done working. Be sure to use low pressure, though: Keep it at 1,600 psi or less to avoid damaging the wood.
Is Deck Cleaner Better Than Bleach?
Yes: Bleach can do a decent job of cleaning off dirt, mold, and mildew, but it can cause long-term damage to the wood. A proper wood deck cleaner is a better option for homeowners looking to keep their wood deck healthy and clean before applying a new layer of stain or wood seal.
Does Deck Cleaner Remove Mold?
Oxygenated deck cleaners, when used in combination with a deck brush, are great at removing mold and mildew that have formed on your wood deck. You’ll have to scrub the cleaner into the wood a bit to make sure all of the mold has been removed before you move on to the next step, but deck wash can be quite effective in getting rid of mold without damaging the wood.
How Often Should I Clean my Wood Deck?
Generally speaking, cleaning your deck at least twice a year is a good idea to reduce the risk of damage from moisture, mold, mildew, and built-up grime. We typically recommend a thorough cleaning in the spring and autumn.
Can I Use a Deck Cleaner on Composite Materials?
Yes, you can use a deck cleaner on composite decks. It’s critical to find the best composite deck cleaner first, though. In many cases, composite wood may require a milder cleaning solution to avoid damaging the material.
Are There Any Environmentally Friendly Deck Cleaners?
Some of the best wood deck cleaners on the market, such as oxygenated deck cleaners, are environmentally friendly. As mentioned above, oxygenated deck cleaners feature sodium percarbonate as the active ingredient.
Sodium percarbonate is an EPA-registered cleaning agent that works quickly and effectively to remove mold and mildew from your wooden deck. It’s also the active ingredient in several of our favorite deck cleaners, such as the Defy Wood Cleaner.
How Do I Prepare My Deck for Cleaning?
In most cases, deck cleaning doesn’t require much prep work to start. Remove all furniture and decor from the deck, then sweep the boards and give them a quick pre-rinse before applying your deck cleaner.
What Does a Deck Brightener Do?
While we’re on the topic of caring for your deck, it’s worth mentioning wood brighteners. After cleaning, brighteners help restore the wood’s natural color, neutralize any cleaning residue, and prep the surface for staining or sealing. They’re a simple extra step that can make a big difference in how fresh and clean your deck looks. Here’s a link to our article on wood brighteners.
🪵 Best Deck Cleaner by Wood Type
Choosing the right cleaner also depends on your wood type.
Pressure Treated Wood
- Oxygenated cleaners work best
- Easy to clean and restore
Cedar & Redwood
- Oxygenated cleaners work best
- Avoid harsh bleach products
Hardwood Decks (Ipe, Cumaru, etc.)
- Oxygenated cleaners work best
- Avoid over-aggressive chemicals
🧠 Cleaner vs Stripper vs Brightener (Know the Difference)
This is one of the most common areas of confusion.
- Deck Cleaner: Removes dirt, mildew, and light graying
- Deck Stripper: Removes old stain or sealer coatings
- Wood Brightener: Neutralizes the wood and restores natural color
👉 In most restoration projects, you’ll use a cleaner + brightener together
👨🔧 Pro Tips from 30+ Years of Deck Cleaning
From our experience restoring hundreds of decks:
- Always pre-wet the wood before applying cleaner
- Never allow cleaner to dry on the surface
- Apply in shaded conditions when possible
- Use a pump sprayer for even coverage
- Pressure wash off at low pressure below 1500 PSI
- Rinse thoroughly to avoid residue
These small steps make a huge difference in final results.
⚠️ Common Mistakes When Cleaning a Deck
Avoid these common issues:
- Using too much pressure when washing
- Skipping the brightener step
- Letting cleaner dry on the wood
- Overusing bleach-based cleaners
- Not testing a small area first
📅 Deck Cleaning Maintenance Schedule
- Light cleaning: Every 6–12 months
- Deep cleaning: Before staining or sealing
- High-traffic areas: Clean more frequently
Regular cleaning prevents long-term damage and keeps your deck looking newer longer.
🔗 Related Deck Prep Guides
Final Thoughts
The best deck cleaner is one that removes contaminants effectively without damaging the wood.
In most cases, an oxygenated deck cleaner is the best choice for overall performance and safety. It provides excellent results while keeping the wood in good condition for future maintenance or staining.
From our experience, choosing the right cleaner — and using it correctly — is just as important as the stain you apply afterward.
Would like to know if the Restore-A-Deck Cleaner and Brightener Kit will help with my deck?
The dark area had a outdoor carpet on it for a few years and the lighter area is wjat the rest of the deck looks like.
The RAD Cleaner and Brightener Kit is built for exactly that kind of spot — the cleaner lifts the dirt and mildew that build up under a mat or carpet (the usual cause of that dark shadow), and the brightener evens out the wood tone afterward. Most of the time that combo gets the dark area much closer to the rest of the deck. If it’s been covered for a few years and the staining is deep, you may need a second pass with the cleaner on just that spot before it fully matches.
Is Rez DECK CLEANER – REZ MILDEW REMOVER AND WOOD REJUVENATOR a good product.
Says Biodegradable on the label but not sure how safe to use.
Sorry, but never heard of it.
This is a newly built pool deck that we are staining. It was finished a couple months ago and with a water test the boards are soaking up drop of water very quickly and not pooling on the surface so we think that it is ready for stain. It is made with pressure-treated lumber and we have purchased the restor a deck cleaner, brightener, and a semi transparent Armstrong Clark stain based on your recommendations. Just wanting to confirm on the application process, would you apply the cleaner and then brightener to a deck this large in sections? Or as long as you’re keeping it damp/wet you can cover all the area and go back and rinse it off? Also can I apply to stain within a couple of hours? Is it better to use the cleaner and brighter say on a Friday night and then start seeing first thing in the morning on a Saturday? Or try to do it all in one day? How long will the deck stay ‘clean’ if we tried to split this up into two different weekends? And if we did split it up into two different weekends, would you suggest to do all the vertical surfaces and then the deck floor on the second weekend?
Any advice you can give is helpful. I have really appreciated your website! This is such a big project for us and is the hub of our backyard so it’s really important to us that we get this right
FYI, AC stains want at least 3 months of weathering at a minimum and make sure to only apply one coat of stain to new wood.
-We would do it all at once. Pre-wet the deck, then apply a clean pressure wash (medium to low pressure) after 15 minutes. Mist areas as needed to keep from drying out. You can wash this deck in 1-2 hours. Rinse well when done and then apply brighen to all wood while wet. Rinse that after 15 minutes.
-Prep all in one day.
-Stain 48 hours after prep or any rain that may occur. Stain within 2 weeks of prep.
-Stain the stairs first and then the floors after.
I have a Tigerwood Deck that is about 5 years old, What would you recommend to clean it and restore it as close as possible to its original condition.
Thanks
Tips here: https://www.deckstainhelp.com/ipe-staining-instructions/
Why is the use of Oxyclean NOT recommended?
Because it is a general cleaner, not a deck cleaner designed for wood. The products suggested above are much more effective on exterior wood and decks
I went ahead and ordered restore a deck package for our port orford cedar deck. There are significant grease stains from dogs and bones, what can I prep those areas with to get the fats that have darkened areas of the decking?
Those may not come out as the grease stains can be deep into the wood grain. Prep products remove dirt and other contaminants at or near the surface. If deep, it will not come out.
Rats, I’ve read elsewhere regarding dish soap and also baking soda as agents that might help. Give it a try, unless they make things worse??
Sure, give it a try. It really depends on how deep it is. Brighten all when done to even out any potential issues of color change.
Hello again, from Chicago, with my progress report. what a process! Between the rains, the unending cold temps, health setback and general snafus, I finally completed the stripping (of the blackened penofin sealer) and brightening of my ’24 cedar deck, using the products you recommended. What an awesome difference!
Now, MUST I apply a sealer of some kind? or can I just let it get old and silver like me?!
If I must, how soon? I wish it could stay like this! (pics taken today after finishing)
Summer is just now getting close, sun and temps wise, so it’s getting hotter!
Thank you so muck for your advice and help!
A clear sealer will not provide UV protection against graying, but it can protect against water, mildew, etc. If you want to prevent the graying, then you need a semi-transparent stain. Which do you prefer?
I want the wood to age naturally, to grey/silver. If a sealer protects against mildew and water damage, I’m happy to apply some. What do you recommend, and when is the best time to apply?
The pic didnt post for my original message. Compare to ones I sent in March.
Two options for a clear sealer that you can apply now.
TWP 1500 Clear is oil-based:
https://www.deckstainhelp.com/product-category/twp-wood-stains/twp-1500-series/
or Defy Extreme Clear is water-based:
https://www.deckstainhelp.com/product-category/clear-wood-sealers/
thank you. I think I’ll stear clear of oil based product this time.
I’ll use the Defy water-based if you advise it to be better than nothing!
I am using the clip but still see no pics… one more try…
there I see it, as before, until I click post comment. “HEIF Image – 2.8 MB”, could that be the problem? I do want you to see the results!
Size and file type. Make it smaller and switch to a JPG or PNG file.
3rd time’s a charm…?
Nice job!!
Thank you. and now I will order the Defy product and be done with it!
Have a good summer! Take care.
No issues. Let us know if you need any help ordering from our website.
I used Amber wood stain last summer. I only want to clean the deck this year-NOT prep NOT stain again-after a dirty winter and spring. What should I do? You recommend cleaner, but then add brightener, and on and on. There has to be an easy clean only for this oil base stain. Please help!
Prep products for decks are only to be used when recoating, not general cleaning.
so what do you recommend for general cleaning? oxi clean?
Warm water and maybe some dish soap. Do not use Oxiclean.
Did 2 gallons of warm water and tblsp of Joy….. doesn’t look good. Any recommendations?
Looks decent to us. Any other cleaner may be too aggressive, and that means you will need to recoat. I would leave as is, then prep and recoat next year as needed.
Two years ago I had my mahogany deck which was blackened and stained with mildew and mold “cleaned” using Jomax. It turned white and the Cabot oil stain which was applied did not last. Now I need to have it redone. There is some mildew present and how should that be removed before applying a primer and two coats of a Cabot solid color acrylic stain? The painter has proposed using Jomax again. Is there an oxygenated alternative or has irreversible damage already been done to the wood?
Add some pics in the comments for prep help. FYI, do not use primer with deck stains.
This picture shows the deck floor which was treated with Jomax two years ago and the present condition. I assume that the green mold needs to be removed before the solid stain can be applied. What oxygenated product do you recommend for this procedure? The painter wants to use a primer followed by two coats of solid stain in order to cover the present mess. Why do you not recommend this action? I think I need to forward that information to the painter.
Primer is not suggested for deck stains, including solid colors. Why do you want a solid color stain? It will mask the beauty of the Mahogany and will be harder to maintain as solid stains peel.
The Jomax with the added bleach has “cemented” the pours pf the mahogany and the stain cannot penetrate the wood. It just flakes off and leaves the white surface of the damaged wood visible. It has been suggested that the deck be professionally sanded down to fresh wood and stained with an oil stain. This procedure is very costly, and I am willing to sacrifice the beauty of the wood for a solid color surface. Is there an oxygenated product that would remove the light greenish mold and a deck paint that could be used to cover the cleaned surface? If this is a possibility, should a primer be used with an oil base or acrylic deck paint? The deck is not used frequently, but is exposed to the New England weather.
I really appreciate your prompt response and advice. Thanks!
Don’t use paint or promoter on a deck. If you want an opaque look, use a solid color deck stain.
Have you tried to strip off the current coating and the white marks? I have never heard of a bleach or a cleaner causing the pores to be cemented.
The Jomax with the required bleach turned the surface of the blackened mahogany into a hard white nonporous surface. “Cemented” was my term used to describe that condition. When the oil stain was applied it did not penetrate the wood and flaked off leaving the white streaks shown in the photo. Will a solid color acrylic deck stain cover this mess and last for a few years without peeling? You do not recommend using a primer? The only way to remove the bleached coating would be by sanding which I am trying to avoid because of the expense and possible damage to the mahogany.
A solid stain will cover this. Primers are never used with deck stains.
https://www.deckstainhelp.com/what-are-the-best-solid-color-deck-stains/
This is another picture of the deck floor.
Deck floor (with tree shadows!)
Just looking for a safe product to remove grim from a redwood deck. The deck is stained. I am not prepping the deck to re-stain; just looking for a cleaning agent that will not diminish the stain.
Deck cleaners should only be used when you plan to recoat, not for general dirt removal. We are not aware of any commercial cleaning product that will remove grime without harming the stain. Best to use only water (maybe a bit of dish soap) and lightly rinse with a hose or a car wash brush.
Thanks for your quick response.
Can I use this on a mahogany deck that has not been stained but needs some refreshing.
Which product are you referring to?
I have a two tier large deck three years old. We have a light brown stain on it. What product would be best to use for removal of mildew?
Are you prepping for recoating or just want to remove mildew? Add some pics in the comments.
3,7, 3.8 MB each
Yes, this is typical of Penofin issues. Strip it off as suggested, brighten the wood, and apply a clear sealer that has no tint or color added.
Hello. I happened on this site looking for information on WHY it happened and how to get rid of the black dirty residue on the horizontal parts of my new cedar deck. I am in Chicago. It was built in July ’24, sealed in April ’25 with Penofin oil type sealer. I spoke with a Penofin rep, explaining that I wanted a CLEAR sealer, that I wanted the cedar to age to the natural silver/grey and he assured me that it will happen. I very much regret that process as it is really ugly, dirty and dingy. At my last home, I left a 30+ year old treated pine deck that I only washed occasionally. It never looked as bad as this wood after only one year! I almost regret the extra expense for the cedar. Very disappointed. But now what do I do? Will it ever age to the silver? Will I need to wash it – and how? – every year?
The contractor began using the Penofin Marine sealer on the railings/balustrades and it was orange to me… I really do not like orange! So I went to another store for the CLEAR Penofin blue label sealer for the deck floor. ALL the horizontal parts, floor and rails, are dirty. Is it Chicago air, a mile from the big lake MI? or the Penofin? One worker told me, AFTER, that he would never use an oil based sealer (as recommended by his boss). NOW he tells me! I should say that the deck was quite blackish before it was pressure washed and sanded before the application. It’s almost time to do SOMEthing before bringing my potted garden back out onto the deck… on north side of my home, mostly shaded except the 3′ stretch where I place the flower pots (as seen in photo). Thanks so much. I learned a lot from the comment section here. unless you tell me otherwise, I think I’ll just use some dish soap (any? Dawn?) and a brush and light power rinse.
Penofin has known issues of darkening in color and getting dirty: https://www.deckstainhelp.com/penofin-ultra-red-label-stain-review/
To fix it, you will have to strip it off fully and then brighten the wood. Use this kit:
https://www.deckstainhelp.com/product/restore-a-deck-stripper-brightener-kit/
Do not use Penofin again, as the issues will repeat. For a true, clear sealer, try TWP 1500 Clear: https://www.deckstainhelp.com/product/twp-1500-series-1-gallon/
or Defy Extreme Clear:
https://www.deckstainhelp.com/product/defy-extreme-clear-1-gallon/
Both will silver and gray over time and will not enhance the wood grain or make it orange.
Thank you Scott! I’ve got some work ahead…
And I will pass the Penofin advice along.
Another question – will I need to repeat the clean/seal process again?
You will need to strip, brighten, and redo with a proper “true” clear sealer now. Redo every 2-3 years down the road is normal.
thank you again.
some emails have me wondering if you see the photos I posted – or tried to …
No photos have been posted in the comments. Most likely, the photos were too large.
I sent via email reply… not sure how to add them now, see no clip icon.
if you see them, let me know if any change to your advice
We do not monitor emails, all communications need to go through comments. The email notices do say that they are not monitored. The clip is in the bottom right corner.
Hi Scott, I made the mistake of sanding only the worst part of a black mold deck, instead of using a cleaner over the whole thing. I used teak oil to seal it, and I have a multi colored deck now, some dark and some light. My employer likes how the darker stain turned out because it looks like a richer fuller color, but I don’t know how to make the sanded part of the deck that turned out lighter, to match the darker color. Help!
It is not possible to spot fix this. You would have to remove all the current teak oil, then sand the wood evenly at a rougher grit (40-60 grit), then restain.
Do you know if using oxiclean will achieve the same cleaning result?
It will not.
Do I need to cover widows and aluminum trim when I clean and brightener?
Yes, that would be best to avoid a possible reaction, especially with the Brightener.
I’ve just cleaned, bleached and resealed/stained my red cedar deck. I think cleaning the deck spring & fall would help the “finish” hold up better & longer. What’s a good way to simply clean the deck; not for refinishing purposed but to just get the dirt off and not damage the finish? Is there a DIY solution or a good product to buy and use? Appreciate your assistance, David
Deck cleaners are only to be used when prepping to recoat. If you just want to clean off some dirt. Use water with maybe a bit of dish soap.
Scott, thanks for the reply. Makes sense, a simple cleaning solution that won’t effect the existing finish! Simple, easy. David
Correct! Using a soft-bristle brush like the ones you use to wash a car may help, too.
Thanks again. I always use a brush when cleaning. And I have a very low power electric power washer which doesn’t damage the cedar board’s surface. Really appreciate your responsiveness, David
We installed a new deck surface about 7-8 years ago. We live in a very humid area and by the end of August the shady parts of our deck ( near our house) are almost completely black with mildew stains. We have Ready Seal stain. In the past the only cleaner that seemed to work was Olympic but it removes whatever stain is left so I would have to stain every time I clean it! Quite a process. I’ve tried the Restore-a-deck but it never completely removed the stain and I had to go back to the Olympic again. Any suggestions on how to get better results? I have a pressure washer but it seems to damage the wood fibers so I typically do more of a soft wash with that.
thanks!
You would need the Restore-A-Deck Stain Stripper (not cleaner) to fully remove the mildew and the Ready Seal.
https://www.deckstainhelp.com/product/restore-a-deck-stripper-brightener-kit/
Once removed, you might want to try a stain that does not attract mildew, like the Restore-A-Deck stain. The RAD Guard would help after the staining to prevent the mildew from returning:
https://www.deckstainhelp.com/rad-guard-mildew-cleaner-preventer-review/
We bought our house 1.5 years ago and the deck needed a lot of help. We have replaced rotten wood with new wood last fall. The deck floor is painted, the support posts and railings are stained. I have power washed all the stain off after my wife found your website, yikes-Yes I did damage. I was going to use your paint stripper on the decking. Should I use the brightener on all of it since some wood is new and some is old?
Yes, but you cannot stain new wood right away:
https://www.deckstainhelp.com/how-long-should-you-wait-to-stain-a-new-deck/
Hi,
I have a 20×12 single story deck, new treated pine. I was thinking of using a airless sprayer instead of brushing a stain. Would a oil based semi-transparent stain penetrate the wood as well using a sprayer instead of brushing?
Yes, but you do need to back brush after spraying to ensure even application.
Hi,
My deck has a solid stain that is peeling in some areas. Should I use a deck cleaner or stripper before applying stain? I also plan on using a power washer and deck brightener.
See this about reapplying a solid stain:
https://www.deckstainhelp.com/how-to-reapply-a-solid-color-deck-stain/t/
Is Restore A Deck stripper the best option?
For prep with recoating a solid stain or for complete removal?
For prep to recoat with solid stain.
Yes, the Restore A Deck Stain Stripper will help to remove what is loose or peeling.
Hello,
My deck paint is peeling and would like to clean this and apply a new layer of paint to seal it properly.
What would you suggest the right way of doing this would be? Do you think I have to use a sander to get the paint off or a cleaning detergent and pressure washing should be enough before applying the paint? I am fairly inexperienced at this so any suggestion is greay appreciated! Thank you!
See this for tips:
https://www.deckstainhelp.com/how-to-reapply-a-solid-color-deck-stain/
For many years I have used Wolman’s Semi Transparent Dura Sain. Of late, I find this product does not provide the lasting protection it did 20 years ago.
What steps do you recommend before apply another product and, is TWP the best alternative?
Post some pictures in the comments for prep advice.
Hi Scott. 1-year old pressure treated pine deck needing it’s first stain. Most boards look nice with a couple showing some graying. Should I be using RAD Cleaner followed by RAD Brightener?
Yes, that would be correct.
Thank you! 🙂
In the process of taking your advice to restore my deck. I plan to clean the deck 2x per year per your advice…spring and fall. I do get some algae and mold in some spots. What product should I use to clean? Should I use the product 2x per year or just annually? Thank you!
Water to just clean off dirt, etc. Maybe add a tiny bit of dish soap. To help prevent or remove mold or algae, use this over the top of your deck stain after it has dried and cured: https://www.deckstainhelp.com/product/rad-guard-mildew-cleaner-preventer-1-gallon/
I just want to wash the algae off a deck, not prep it for staining. It is already stained. What product do I use to get rid of algae but not the stain. I don’t need to follow with a brightener if I’m not planning to stain, right? Thanks!
It is impossible to pressure wash a deck and remove algae without harming the stain in some way. You could try the RAD Mildew Cleaner and Preventer. Just spray on and let it do its work over the next 1-3 weeks. See here for more info:
https://www.deckstainhelp.com/rad-guard-mildew-cleaner-preventer-review/
Thank you. I just ordered it.
Hi Scott – I appreciate this web site with its very helpful advice on deck care and maintenance. Do you have a comment on Deck Wise products: Ipe Oil Hardwood Deck Finish (photo attached), Deck & Wood Cleaner, and Deck & Wood Brightener?
Attached below are three pictures of the my eight year old exposed mahogany deck over the past several years:
Picture #1 – Taken 8 years ago after applying BM Arborcoat, it looked great when the stain was applied but this stain flaked after a year so I had to sand it off.
Picture #2 – Taken 5 years ago after cleaning and brightening with Deck Wise products; it looks ok but the wood has darkened more in tone and uniformity than I prefer and the shine is fairly flat.
Picture #3 – Taken today after cleaning the surface with Murphy’s soap and before applying an oxygenated wood cleaner and brightener.
Is there a process and product you recommend to lighten the deck wood and result in a glossier sheen?
Thank you!
You should strip and brighten the wood to fully remove the Ipe Oil and restore the lighter natural wood color. You cannot have a “gloss” when it comes to deck stain coatings. Having a shine or gloss will result in the coating peeling and blistering.
With exotic hardwoods, you have to prep and maintain annually. IPE Oil is just Messmers hardwood stain relabeled. It is decent but not the best IMO. See here for the best options:
https://www.deckstainhelp.com/hardwood-deck-stains/
Hi Scott,
I meant to ask: “…recommend a process and product…?”
Thanks
I really appreciate your web site and all the helpful advice you share. Can you please comment on Deck Wise products: Ipe Oil Hardwood Deck Finish (picture below), Deck & Wood Cleaner, and Deck & Wood Brightener. That is what I have been using on my deck over that last five years. Attached are a few pictures of my exposed 6’x18′ mahogany deck.
Picture #1- is the deck 8 years ago after refinishing with BM Arbor Coat; achieved the look I want but the shiny surface flaked off after one year and I had to sand it off.
Picture #2 – is the deck from 3 years ago after using Deck Wise; it works and looks ok but the wood has really darkened and I would prefer a higher sheen.
Picture #3 – is the deck taken today after washing with Murphy’s Soap but before applying a brightener.
Can you please recommend a process and process that I might use to achieve the look in Picture #1 to lighten the wood color and achieve a shiny look that will not flake off?
Thank you very much for your help!
My deck has Sherwin-Williams deck paint River Birch 3204 5 years old, needs a refresh. After using Defy Wood cleaner and a pressure wash, should I use a primer like Styx or just repaint?
Just recoat, no need for primer.
Thanks
Hey Scott,
Looking to stain a rough sawn cedar fence that has grey, do I need to restore and be back to the natural color before I use a semi transparent stain with color or can a good cleaning be sufficient. A small portion of the fence is covered from the elements so parts are still natural color. Will the less weathered parts look differently if the grey sections aren’t cleaned and restored back to natural tones? Thanks
Yes, you need to clean and brighten all wood before applying the stain. Prep all so it is even when stained.
First, thanks Scott for having this website. Very informative and through.
I have a 10 year old deck. It was sealed by one of those rip-off companies promising 25 years of no mold or mildew…yeah right. I have used Restore-A-Deck stripper and brightener about 4 years ago, did a great job, but I never followed through with painting or staining.
As you can see in the pic’s I had to replace some boards, not to mention a stinger and steps. This time I want to complete the process. I live is St. Louis MO. One pic shows how the sun hits the house…bad situation for mold and mildew.
What I would like to ask you is what would be best paint or stain for my deck. From reading your articles it appears that painting lasts the longest, correct. I like the Restore-A-Deck stuff. I was very happy with the results. So I will use that again, unless you suggest something else.
Thanks for your time in replying and helping a weary deck.
The new wood does need to weather for a bit.https://www.deckstainhelp.com/how-long-should-you-wait-to-stain-a-new-deck/
As for the best options, we like penetrating semi-transparent stains:
https://www.deckstainhelp.com/best-semi-transparent-deck-stain-reviews/
Thanks Scott for the advice. I forgot to ask. I was thinking of sanding the deck and the top of the hand rails. They are a little groovy, no not 70’s groovy. I saw your recommendations on sanding.
My question is…Is sanding okay to smooth out the wood. It won’t cause any issues will it. I assume not, but want to make sure.
Again, thanks for the help and advice.
Lightly sand with 60-80 grit is okay. Be careful of over-sanding or sanding to smooth, as that will reduce the stains’s ability to soak into the wood grain. Typically, just one coat of stain if you sand.
https://www.deckstainhelp.com/how-to-sand-your-wood-deck/
I have an underdeck system which is metal. Will these cleaners harm the metal ?
They shouldn’t harm metal.
Old PT deck, good condition.. Sealed w Thompson Water Seal 1 yr ago. Can I use WTP pecan stain? Prep required? Many thank. (PS..
I removed & flipped my 30 yr old PT decking, Pull all nails, belt sanded then reintalled bottom side up. Looks like new . Crazy successful.)
You need to remove the Thompsons first before applying any stain. Use a stripper and a brightener for prep. Try the Restore A Deck Kits. Once prepped, you can use the TWP stains.
I have a covered front porch that is old tongue and groove pine I think. It’s pretty greyed but I can’t tell if there was much of a previous finish on it. Could I use a cleaner and brighten and stain, or should I sand it first? I know you typically wouldn’t want to soak tongue and groove but this gets wet from heavy rain storms and doesn’t seem to warp and swell like normal tongue and groove might.
Clean and brigthen will work.
My new fence and deck has been down at least nine weeks now and the moisture content is around 11% or lower. It is a new deck and is ready for staining what mile cleaning agent would you recommend prior to staining?
When to stain new wood is not based on moisture % but porosity. See this article for tips:
https://www.deckstainhelp.com/how-long-should-you-wait-to-stain-a-new-deck/
We would wait at least another month or two and then prep with the Restore A Deck Cleaner and Brightener Kits.
Hello Scott, Deck [pressured treated] boards were installed in 8/2023, haven’t had it stained or waterproofed. It’s lightened up but still has a few circles where for some reason they were marked with a circle, which has disappeared, but left a white circle. Is it necessary to use a deck cleaner or just to power wash before using a stain/waterproof treatment? TIA
Use a deck cleaner while pressure washing to avoid damage to the wood. Brighten after.
Best penetrating oil based stain for newly sanded porch floor. Think its mahogany or could be Fir) Want to show off wood grain but still to be walked on. Your recommendation???
Try the Restore A Deck Stains or Armstrong Clark Stains.
Do you prefer Restore A Deck stain to TWP 100 transparent oil based stain???
We like them both. Excellent stains.
Is ActiVox a good cleaner for a'” fir wood” deck that’s 100 year wood.
Sorry but I never heard of ActiVox.
Our deck must be done over the next 1-2 days, where can I get Restore-A-Deck in British Columbia Canada?
Online only.
hello and thank you for the info. Where can we buy these deck cleaning products in Canada?
thank you!
You would have to check with manufacturer websites and then have them shipped if no local dealers.
Joe. Where did you purchase Restore-A-Deck. We are in BC Canada
On their website to buy.
I used Restore a Deck stripper and Brightner on a 1 yr. old cedar deck that the stain had failed. After it dried the wood was feathered so I did a light sanding. Do I need to clean and brighten again or can I just use a brighter to open the pores?
I found this site too late for the first stain choice.
Brighten and pressure wash rinse should be enough.
Great! Thanks so much for your quick response. This forum is a great resource. I wish I had found it sooner.
You are welcome!
Have western red cedar siding on house for 40 years replaced some of the bad/cracked pieces. It looked patch work so had cleaned, then bleach cleaned and am going to apply an oil based stain shortly. Should I apply a brighter to the wood since it looks so whitened now?
Brighteners do not fix the “whitened” washout wood appearance. That is from the bleach and cannot be fixed with chemicals. Good news is it should go away with a proper stain like these: https://www.deckstainhelp.com/best-semi-transparent-deck-stain-reviews/
Three year old pressure treated pine deck, first cleaning and staining. Followed the steps but had to end up sanding the furries off. Twp semi solid, restore a deck cleaner and brightener, applied the first coat of the stain and six boards or so did not soak in like the rest of the deck. Darker color and tacky to the touch. Waiting to see what to do before the second coat. Help!
Do not add more. When doing a second coat, it has to be wet on wet.
https://www.deckstainhelp.com/deck-stain-instructions-for-wet-on-wet/
You cannot apply a swcond coat of the TWP once the first coat has dried.
California
Lots of sun, though partial oak shade.
Redwood, circa 1990’s, good condition
No apparent mold or mildew
September 2020, after stripping and neutralizing old red stain we did not like (alkyd and various oil), With your advice I chose TWP 1500 clear transparent and liked the natural tone. It turned dull and gray after a year or two.
I anticipate either Restore A Deck two step vs. stripping plus neutralizing. Then more TWP 1500 (I have 1-2 gallons left in the 5 gal can). I would also consider a cedar tint since that should give me a little more sun protection.
I intend to leave rails as-is this time and only do the 950 sq. ft. floor. Never impressed that my now-leaking pressure washer did any more than hose nozzle unless I got so close as to damage wood, so I am inclined to use scrubbing brush and hose nozzle during prep. Water is scarce here, but I don’t see any way to conserve water on this job.
How to load pictures?
Click the uplaod icon to load pics. You do need a colored stain for UV protection:
https://www.deckstainhelp.com/will-a-clear-sealer-prevent-graying-on-deck/
Which type stain to use, water based or oil based and why
Hi Bob,
https://www.deckstainhelp.com/water-based-vs-oil-based-deck-stains/
Please see this article and answer the questions at the bottom for better advice.
https://www.deckstainhelp.com/the-5-best-deck-stain-reviews-and-ratings/
I am trying to clean up a cedar (I think) gazebo. It is nearly 30 years old and is structurally sound. I’ve used Behr All-in-One Wood Cleaner, pressure washing, and elbow grease with a brush. But many white streaks remain on the underside of the roof. How can I remove those streaks? Or will a stain cover them up? If so, what stain would you recommend? Thank you very much!
Those are bleach runs. Stain will not cover it. You could try to even it out by adding more bleach but not sure if that will work.
Thank you very much for this quick response, Scott. I’m impressed that you’ve been answering such questions on this site for ten years now!
Welcome!
Would you recommend I try chlorine bleach or oxygen bleach? What is the best dilution to use? How long should I leave it on the wood before washing it off? Thank you, Scott!
Chlorine. 1 part bleach to 4 parts water to start. Take precautions with yourself and surrounding areas.
Thank you very much, Scott!
I see here your reply to Jack, in particular, you rec. using TWP or Armstrong Clark stains, both seem to be oil based.
From what I’m reading in other places here and on other sites, oil based stains can harbor mold spores/growth due to the resin or linseed in the oil based stains.
So, is it best to use an oil or water based stain ?
Also, we’re dealing with replacing rotten wood on a back deck that apparently is caused by mold getting hold of it and spreading like a cancer, if you will.
What is the best way to “KILL” and prevent the mold on wood sections of this deck we choose not to replace ?
Clorox, vinegar, oxiclean, copper green or what ?
Have tried so many products and still have a problem, also see where Clorox is not good for the lignin of the wood but just trying to get this right, once and for all.
Totally frustrated with our very large PITA back deck that we have to keep replacing wood on.
The older part of the deck ( side vs back ) was made from lumber when arsenic was used in the treatment process, it faired better by a long shot ( no mold ) than the newer wood ( back deck) without arsenic.
However, am having to replace it also now …with the non arsenic wood …due to sun/heat damage over 21 years . Don’t want mold problems with it too going forward !
Quality oil-based stain will have mildewcides in it to prevent mildew. Water-based stains though will not promote mildew growth. Look at the Restore A Deck Stains for this.
thank you so much!
So what about a good product to KILL mold spores?
Have tried everything I can think of; concrobium, white vinegar, oxiclean, rmr 141, and to small extent, clorox . ( now trying copper green due to the other products not working in this instance ) Also using Grace Vycor on the joist.
What would be the best way to proceed with the restore a deck products on new/old wood mingled on the deck flooring and railing components?
Is stripping, brightening, etc needed on the older wood we are keeping on the deck that has a water based stain on it ?
This is hard work, not to mention expensive !
Do you have pics of the issue that you can add?
Rich — I cleaned and brightened my redwood deck with Restore-A-Deck in early july. I have not stained it yet. Can I stain now, or should I re-brighten it?
Redo the prep fully.
Concerning deck cleaning, you recommend the oxygenated cleaners, and in the video you imply that the bleach-based cleaners change the pH of word. Therefore I’m wondering if when using the oxygenated cleaners, you would need to follow app with a brightener?
Yes, you have to brighten after using an oxygenated deck cleaner.
I dont know if people in general are aware that brightening is needed. At 50 I’m just learning about brightening. Most vids and Big Box store reps say clean and stain, and Home Depot has only a Teak brightener.
I used an acrylic deck stain which didn’t hold up well. A lot of the stain has pealed. I don’t want to use the same stain. What do you recommend to go over the top of the existing acrylic stain
You cannot go over it. It has to be removed first. Feel free to post some pictures for help.
Hello,
Is the Restore a Deck Cleaner OK to use if you only what to clean the deck and have no plans of re-staining this year?
Also, should a brightener be used after cleaning or is this only used when you have plans to re-stain?
I have a 2 year old cedar deck that I stained last year with Armstrong semi-transparent stain. Deck has got dirty/mildew over the winter and want to clean it up for this year.
Thanks for all your help!
No, only use deck prep products like the RAD when you plan on recoating.
What do you recommend for general cleaning of the deck if you are not re-staining/recoating?
Thanks.
Warm water and some dish soap.
Thank you for all of the help and information you provide!
You are welcome!
I have a new pressure treated deck. About a year old. What is the best product to put on it. We would like to see the grain. Going to clean it with rock solid rustled deck cleaner.
Use one of these brands: https://www.deckstainhelp.com/the-5-best-deck-stain-reviews-and-ratings/
Hi. I just finished prepping my deck with Restore-A-Deck 1 and 2. On Friday I will stain with TWP 100 (this will be the second time staining this deck. First one was two years ago.) My question is how should I get rid of bird poo dropped on the flat rail over these past 48 hours of drying. It’s not terrible, but present… Thank you
Wipe it off with a damp cloth a couple of hours before staining.
Okay! Thank you for the prompt reply!
How would you rate Thompson’s 3 and 1 wood cleaner for use on a new wood deck roughly 1.2 months old?
All Thompson’s products are cheaply made.
Earlier this season, I stained my new pressure treated deck with Cabot dark brown stain. However, over time, my dogs foot prints have left very definitive path marks in the areas of higher traffic. Like they’ve been absorbed into the stain. Thinking I need to wash the deck (looking for best product) but then thinking I need to sand and reapply another coat of stain to get rid of his prints. What about a sealant beyond that? Is there anything I can do that would protect the surface to point that any further paw print marks can just be rinsed away ?
You cannot seal over a deck stain. It will peel if you do. The only thing you can do is fully remove the Cabot and go with a better brand of stain.
Tell me A better stain that will not perform same way ?
Any of these brands: https://www.deckstainhelp.com/the-5-best-deck-stain-reviews-and-ratings/
Have you tried the Penofin cleaner and Brightner? Thoughts?
Yes, not fans.
I used Armstrong Clark product to stain my older mahogany deck — looks great and seems to be very protective. This year the pollen was horrible. I can’t seem to rinse it off the deck (used a dark colored stain). Any suggestions of products to use with garden hose to clean off pollen?
Use water only as deck cleaners should only be used when you plan to reapply with the same color and stain brand.
Water is not removing pollen. Tried already. Dawn dishwashing soap or vinegar?
Anything too aggressive and it will remove the stain as well. Try some warm water and a little bit of dish soap.
I plan to stain an old deck (that has never been stained) using Armstrong Clark semi-solid stain. I will be cleaning with a powerful pressure washer. Is it absolutely necessary to use both a cleaner and a brightener? Or could I get by with one product? If so which product would you recommend? I am trying to be frugal and am not shooting for perfection in the look of the wood. . I mostly want to protect and maximize the resistance to wear and tear and peeling, etc.
Yes, use both cleaner and brightener for best results.
Hi – i have sanded a 4 year old mahogany deck almost back to its original state and am going to put a clear stain on it as i want to keep the color as natural to the mahogany wood as possible . I think i should also clean it before I stain but am worried the cleaners will ‘lighten’ or change the color of the wood. I know the oxygenated cleaners are better than the bleach based ones but will they change the color of the wood? What should i use to clean it before staining ? Thanks
All deck cleaners will change the color somewhat. On another note, a clear sealer will not protect the wood from graying. It will gray in a matter of month.
I stained my new deck last August and would like to stain again this June. Should I wait longer, or is that length of time ok between stainings?
As long as you prep, you can stain now.
I have a pine deck that was built in 2019. It’s not been stained and has aged well. There are a couple of mildew stains and a little staining from red clay. What would be the best prep before staining? Best cleaner and tools. Thanks!
Use the Restore A Deck Cleaner and Brightener kits for prep. Apply with a pump sprayer and pressure wash off.
Can you get this at any local stores
Check with them directly. http://www.restore-a-deck.com
This is probably wrong place to ask — (I can’t figure out how to post a question on one of the forums, even though I click start topic.) So here goes: We have and old deck with a splinter hazard. We will be sanding it. If we sand it before we clean it aren’t we just driving any mold and spores into the wood? Or are we blowing them away, so to speak? I think you are recommending sanding it then cleaning it, then staining it. The appearance is not the primary factor here, as it is around a pool. I am just not clear on the correct order. We have stained in the past with TWP 100 semi-transparent cedar and have been quite happy, but want to minimize hazard of older wood by sanding this time. Thanks.
Cleaning does not drive mold into the wood, it would remove it if there.
I was wondering about the sanding before.the cleaning. But I think we have settled on sanding then cleaning as you suggest. Thanks.
After cleaning my deck with Mold Armour I found this forum.
Deck looks good. Now should I use a proper wood cleaner, then a stripper to remove the loose solid stain then brighten?
I plan on using Defy after reading extensively here.
Post some pictures of your deck.
This is after mold Armour
You have many different layers of old stain. To fix correctly you need to power sand it all off down to the bare wood. Strippers will not get it off.
Once fully removed, use a deck cleaner and then a wood brightener for final prep. You can then use a penetrating semi-transparent stain or a solid stain again.
Need to clean and prep 20-yr old deck tot re-stain with solid color acrylic deck stain. 3-yr old coating is peeling in chunks — about half can easily be removed with scraper — other half has good adhesion. What cleaner is recommended?
Sand and strip to get it all off. Cleaners will not help.
Do you have any tips or tricks to get the RAD cleaner and brightener to dissolve better? I use a pump sprayer to apply and these products inevitably don’t dissolve completely, clogging the sprayer tip or hose. Should I try using warm water? Thanks for your help!
Never mix in the sprayer. Mix in a bucket and than transfer to sprayer. Be careful of transferring into the sprayer the bottom inch that may have undisolved powder.
Can I apply the same technique of cleaning a deck to cleaning and restoring a wooden swing set structure also with climbing and covered wooden decking like a fort or tree house?
Yes.
I purchased SuperDeck Cleaner and SuperDeck Brightener and will use on a new Redwood Deck which was installed 5 months ago.
Can I use the Cleaner and Brightener on the same day, or do I need to let the deck dry between these two steps?
Same day.
Thanks! All taken care of yesterday, but got a follow up question.
After cleaning/brightening it was obvious where sap has leached out in some areas.
Going to use Armstrong Clark RedWood Tone in a couple days, and curious if before then could I scrap and sand these areas? Or would that actually unintentionally “seal” the wood by spreading the sap which would prevent the stain absorbing?
Thanks again for being such a great resource!
Just leave as is or use a solvent like lacquer thinner to clean off.
Googling articles on wood cleaning, which I need to do on an area of wood lattice, it’s really concerning to see that the most common cleaner chemicals used , vinegar, bleach and oxyiclean, cause or aggravate rust …So using them could damage the fasteners which hold the lattice together!
Is there another choice of cleaning chemicals I could use to clean and save this lattice, that has not received any treatment for 3 years since built, and is now brown, turning black when wet?
If no other chemical is available, which of the 3 listed above, bleach, vinegar, and oxyiclean, would do the least damage?
I understand from other posts, that you usually just recommend one of your products, but in this case a closer look at what chemicals the products include is urgently needed , and how their impact would be on metal components would compare. If this inquiry is beyond the scope of your forum, please provide links to other sources that could enlighten this difficult issue. Thank you very much
The black is rust from the nails/metal fast\ners. It is not caused by the cleaners but the water. A wood brightener would help to remove the black rust stains.
We just had our decks stained a light gray color with Superdeck solid stain. Of course, now the leaves are falling and after the first rain the leaves have left stains on the newly stained deck boards. This is something we never considered when choosing the color of the stain. How can we safely remove the leaf stains without damaging the very expensive job? Is there anything we can do to prevent this in the future?
Nothing you can do to prevent in the future and the only thing that removes organic stains like this is bleach and that unfortunately, that may lighten your stain color. 1 part bleach to 4 parts water. Apply and rinse after 20 minutes.
What is the best product to prep my redwood clear heart deck boards prior to staining? I would prefer to use something less harsh than oxalic acid. I’ll be finishing with CutekExtreme protection oil.
See here: https://www.deckstainhelp.com/restore-a-deck-cleaner-system-review/
My pergola was built in June 2020. Do I need to clean and brighten before staining with Armstrong Stain?
Yes you have to prep. See this about new wood: https://www.deckstainhelp.com/staining-a-new-deck/
Which deck cleaner and brightener would you recommend for a new deck built March 2019, there’s no graying yet, no stain/seal applied as of yet.
Restore A Deck Cleaner and Brightener Kits.
Hello, I have an Ipe deck that was constructed in the fall of 2018. I let the deck weather over the winter and in the summer of 2019 I used the RAD cleaner and brightener at full strength (1 cup/Gal) with a stiff brush and ended up with a blotchy looking surface and noticed that the surface was somewhat frayed. See first photo. I believe I used too high of strength of cleaner and did not rinse thoroughly in between steps. I went ahead and applied Ipe Oil after the deck had dried and the blotchy look (with patches of white) still remained. See photos two and three. I am now preparing to refinish the deck again this summer. See photo 4 of current condition. The blotchy look has somewhat dissipated due to weathering from snow/rain (I live in northern Illinois). What did I do wrong last year? What do you recommend I do this year? Do I use the RAD stripper, cleaner and brightener or just the cleaner and brightener? I was planning to use less than full strength cleaner/brightener and make sure I rinse more thoroughly this time. I like the Ipe Oil and plan to use it again. Thanks!
Strip and brighten so it is even. Looks like last year you did not remove all the oxidation.
OK thanks for your help! Do I need to use the cleaner in between the stripper and brightener or just the stripper and brightener? I am planning on using the Restore A Deck products.
No need for a cleaner.
Stay away from deck restore I have had an entire deck ruined. It peels within a year and hold moisture underneath causing it to bubble and rot the wood. Google deck restore litigation. Good luck.
Restore-A-Deck products and Deck Restore by Rust-Oleum are not the same thing and are not made by the same companies.
Our deck is 24 years old and we restain about every 2 yrs. with Armstrong semi-transparent stain. Now it has been 3 yrs since it was cleaned (my bad) and the deck surface turns white tennis shoes BLACK on the bottom of the shoe. It is past time to clean deck and I will do so using Restore A Deck Stripper/ Brightener. Is it advisable to stay with the Armstrong product or would better results come with using the TWP 1500? We are disappointed that the stain only seems to last barely two years. I have about 850 Sq. ft. of redwood decking plus posts and handrail. Help!!!
2-3 years is the most you will get with the high-quality stains. What is nice about AC or TWP is that they do not peel and are easier to maintain as needed. You could try the TWP but not sure if the longevity will be much different.
Thank you for the reply. Perhaps the last time it was cleaned we used a Lowes product, so this time I will be sure to use your recommended cleaning product. I’m waiting to have an app’t with a local painter who also uses AC as a stain. I will let you know how the deck turns out.
I have purchased Pittsburgh Ultra Deck Cleaner. It isn’t removing the previous stain spots and is leaving a white chalky type film on the wood spindles and top railing which is as much as I have done. Keep going back and rinsing again. What is going on. I don’t remember having this kind of trouble before. The deck is cedar wood. Also it is not removing dark spots very well. Please help.
Post pictures.
What do I do about the white film on the wood. Can I just seal over it and it will go away.
No picture.
I have a cedar deck that is one year old. I cleaned & treated with Messmer’s uv plus semi-transparent oil-based natural cedar. I am planning on restaining in the next couple of weeks and have a question about prep. I will use the same stain again as we want the natural grain to show. There are no stains and when I touch the decking, you can feel the wood – only a few glossy spots. Mostly it has fading from sun – i live in the mountains in CO. I know we need the stain to penetrate the wood so wondering if cleaning it with an oxi cleaner and then restaining is adequate? I don’t understand what brighteners do and don’t feel it’s necessary. Is cleaning all I need to do for prep and will this be a necessary step every time I stain? Thanks.
Yes you always have to prep when reapplying and yes brighteners are typically needed: https://www.deckstainhelp.com/what-is-a-deck-brightener-and-why-use-one/
Will outdoor wood cleaners, like Thompson’s 3 in 1 Wood Cleaner, or Oxy Foaming Action Exterior Multi-Surface Cleaner damage a lawn? I am looking at cleaning (and sealing) a used outdoor wooden swing/play-set in our backyard. (It isn’t necessarily “dirty, but the wood is somewhat worn/weathered, and needs to have something applied to protect it for the future.)
We acquired this “used” from a family member for our grandkids, and it needs to have a good wood sealant applied to it. Basically all wood cleaning/prep products suggest using a cleaner prior to applying wood sealants…
Thanks
The cleaner should not harm the grass but make sure to saturate the areas when done with water.
You recommend using sodium hydroxide deck cleaners but not bleach. You know deck cleaners that use that are pretty much super strong bleach don’t you? SH deck cleaners will do every bit and more of the damage bleach will if used improperly.
Sodium hydroxide is not used in deck cleaners but used in a stain stripper and is not even close to bleach. The main ingredient of bleach is sodium hypochlorite.
I have a relatively new deck 4yrs old; that was stained 3mos after being built and once more 2 yrs ago. not bad on dirt and algae (south facing deck).. Should I use a std restore a deck clearer and power wash for best results.. or sand too? Should power wash be so aggressive to remove the old stain? .. or good enough no to leave agreesive line and leave some of the old stain? I’m just doing horizontal surfaces and stairs.
Strip it if switching stain brands and then brighten the wood. You have to remove the current stain.
I am getting ready to apply a maintenance coat of TimberPro UV Deck stain (Canadian waterborne oil/resin semi-transparent formulation) after applying 2 coasts last year on PT pine. The deck is mostly covered, north facing, close the the ocean; there is some algae/staining, but this product is by far the best we’ve ever had. I am planning to clean , but wonder if I should brighten also, before applying next coat.
The manufacturer sells a “clean and brite” product(liquid) but I can’t find out what’s in it, compared to other online products (RAD, Defy) that will ship to Canada ; is it advisable to stick to the same manufacturer’s product line or go with one of your highly-rated products?
Thanks
Never heard or used that brand of stain so we would follow their directions for prep when recoating.
Hello from Canada 😊
Our house in Alberta (harsh winters, lots of snow) came with a 600 sq ft weathered cedar deck, never stained. South exposure, some parts with lots of sun all day, other areas have partial shade in summer (trees). It looks like previous owners used Thompson’s Waterproofer plus, that I see you don’t recommend. I clean the deck each spring with a solution of Oxi-clean as more environmentally-friendly option, but the mildew is getting worse and more difficult to remove. Should I switch to professional cleaning products? Which one would be environmentally friendly?
Also need advice on the following two options we are considering:
Option 1: keeping weathered look as we don’t mind it; which clear sealer would you recommend for protection and mold/mildew prevention?
Option 2: introducing a transparent stain with a very light tint to make cedar look natural, showing wood’s grain (we don’t like dark or solid stains). What prep do we need to do so the wood doesn’t show unevenness of weathering that is present now? Which products do you recommend?
Your advice is greatly appreciated as we never had a cedar deck before.
Thanks,
Yvonne
Prep with this kit: https://www.deckstainhelp.com/restore-a-deck-cleaner-system-review/
As for a clear, try the Dey Extreme Clear. For a stain, try Defy Extreme in Natural Pine.
Thanks! 🙂
Another question: we are looking for a very deep, rich brown (no reddish undertones), semi-transparent stain for our fence (new PT wood) with west exposure; something possibly similar to dark walnut? What product/colour would you recommend?
Thank you,
Yvonne
Try Rustic Brown by Armstrong Clark or TWP Dark Oak.
I’ve got a black locust deck that had been finished with a penetrating oil. The finish did not hold up well in the sun and mold. I cleaned it with bleach based cleaner and power washer. It took 2 days and still left of a lot of black stains. Here are a few questions: 1. Should I clean again? If so with what kind of cleaner? 2. Given that the penetrating oil recommended by the decking company didn’t hold up well, should I try a sealer like Thompson’s or something else?
Strip and brighten for prep. Thompsons is a poor stain and sealer. Look at one of these brands: https://www.deckstainhelp.com/ipe-exotic-hardwood-stain-review/
Thanks! I think I’ve now taken off the old finish it just has some black stains left. Do I really need to strip now or just clean and maybe then brighten?
Cleaning will not remove it. If anything will, it will be a stripper and then a brightener.
I used restore a deck to strip my deck. It worked amazing. Do I need to use a product in the raw wood before I stain?
Just brighten the wood.
I had a solid stain applied last fall. Now that the snow is gone, the oak coloured wood has a lot of white,streaks and spots, seemingly mould and mildew. I used a dry scrub brush to remove what I could. As I’m not staining it again now, what product should I use to continue the cleaning and removal of the white stuff?
Try bleach. 1 part to four parts water. Do a test spot first.
I’ve used restore-a deck 5 times (twice pressure washed) and can’t get all the grey off my ipe. Was finished 3 years ago with clear Messmer’s for hardwoods. Is TSP out of the question? Am I left to sanding?
Yes. Your pressure washing marks will need to come out with sanding.
Thanks. Then restore a deck will take out remaining grey after that?
Most of it. When you stain it will not show.
Does valspar all in one wood prep remove old stain and urathane ? Does it strip wood
No. You cannot remove a urethane with a stripper. It will have to be sanded off.
Hi, I just had an Ipe deck installed. Unfortunately, a painting crew showed up early, and i had to pause before applying oil. The painters covered the deck with brown butcher paper to protect it. Even more unfortunate, it rained that night. When i removed the brown paper the next morning, there are clear “lines” where the water had pooled on the paper. How do I remove the lines so that I can apply my first coat of oil?
Sorry but no idea what will remove these stains. These guys do not know what they are doing. You cannot even stain new wood right away. It has to naturally weather for 3-4 months and be prepped.
I guess we’ll let it weather for the 3-4 months to see how it looks. Then will prep and oil. Thanks
Hello. I am planning to use an oxygenated-based (Sodium Percarbonate) deck cleaner, followed with an acidic (Oxalic Acid) brightener. Is it okay if these two products are of different brands?
Should not be an issue.
Hi I’m looking for a good 5Ltr light oak fence stain / paint that covers really well any suggestions on brand and where to buy ?? . Thanks
Not sure what you mean by “5Ltr”?
Hello, I applied oxyclean with sprayer, let it sit for 10 minutes, then pressure washed to clean pine fence. Is it still necessary to use a wood brighter and what brand would you recommend?
It would help. Any brand should work.
Planning on refinishing our deck but don’t really need to redo much of the upright portion. In the past we have sanded the deck down and restained which is the plan. Had a lot of algae and mold growth this year and scrubbed much of it off. Was thinking of treating the flat boards with borate before restaining. The deck is several years old. Is this recommended and will the borate damage the stain on the uprights? Also, what’s the best grit of sandpaper to use so the wood will take the stain well? Starting to wonder if too fine of a sand is part of the problem casing us to have to refinish often.
60-80 grit. You want the wood porous. Not sure on if a borate will hinder the stain or not.
Hey seen some great questions/answers. Just thinking of doing something with a 2 year old PT wood deck that is about 14 * 18 with metal railings.
What are the best products and procedures? I have heard not to pressure wash. I’ve heard use cleaner and brightened. I’ve also heard just apply sealer.
What are your recommendations and what are the best products? I must state I live in Ontario Canada.
You pressure wash while using a deck cleaner and a wood brightener. You then stain with a penetrating semi-transparent stain. In Canada, you are restricted from any decent brands in stores. Many buy from the states and look at TWP 200 Series or Armstrong Clark.
I have a 2 yr old treated pine deck that hasn’t been finished since completed. How should I prepare it for finish?
Use the Restore A Deck Cleaner/Brightener Kits. https://www.deckstainhelp.com/restore-a-deck-cleaner-system-review/
I live in New England where decks are subject to extreme cold and snow in winter, lots of rain in the spring and hot, humid summer days. I had a new, low level deck out of pressure treated wood (first bad decision) built 7 years ago, 15 x 24. Sealed it myself after letting it sit for one season. It grayed and looked dingy at year 2, so I cleaned it. But I didn’t like the the inconsistency of color, some spots brighter than others, some spots very dark – so I stained it in year 3 with a product from Lowes. Big mistake. The stain began peeling the following season. I lived with it. At year 5 it needed a good cleaning and re-staining. I decided to hire a professional to clean and re-stain with Benjamin Moore Accolade, which is what he recommended. Another big mistake. The finish was a magnet for mildew and pollen and also peeled slightly. So this year, to save $, I decided clean my deck myself. Used Olympic Deck Cleaner to clean the stained deck – based on advice from Home Depot customer service rep. Another bad decision on my part. It took off the mildew and pollen along with removing the stain in several places. It also left a white, powdery film that I cannot get off no matter how much I brush. The professional’s advice is to completely strip the deck, clean, and re-stain. The cost to do so is 50% of what replacing the deck boards will cost me and I am still faced with seasonal cleaning & sealing. I could be a commercial for composite decking or stone patios. Am weighing my options at present.
Post a picture.
Picture posted as requested
The easiest and least expensive thing to do at this point is to pressure wash for prep and apply a solid color stain over all. See if that works well for a couple of years.
That is what the painter did last time for $1200. It lasted one season. Thanks for the input. I decided to remove the boards and go composite.
Have tried to post, however not sure it uploaded
No pic.
I have a two level deck on North side with towering pine trees nearby and a serious discoloration issue. I’d like to try to just clean it and see if I can get by another season before having to resurface again. (I spend more time working on this deck than enjoying it.) Can you provide recommendation?
Try this cleaner while pressure washing to remove the dirt, mildew, and algae: https://www.deckstainhelp.com/restore-a-deck-cleaner-system-review/
Just wondering if you have used Timber Pro UV Clean & Brite deck cleaner or can recommend this product?
Sorry but no.
What to clean my white painted railings with yellow pollen stains on them and not ruin the white paint
Try warm water and dish soap with a soft car wash brush.
The natural wood stain is under a covered porch and the lighter wood is exposed to the outside. What should I use to clean and prepare for a new coat of Cabot’t ATO?
https://www.deckstainhelp.com/restore-a-deck-cleaner-system-review/