Can Deck Stain Go Bad?  5/5 (1)

This post was updated on February 22, 2024

Can deck stain go bad?

Yes, deck stain has a shelf life and can go bad. The shelf life of deck stain depends on the brand and type of stain, as well as whether or not the stain has been opened. Oil based deck stain keeps longer than water based deck stains. The average deck stain lasts 6 to 12 months when opened or 2-3 years unopened. High quality oil based deck stains can last longer than 12 months when opened and up to 5 years unopened when stored properly in climate controlled storage.

How to tell deck stain is bad?

Deck stain that has gone bad will clump, thicken, and form a film on the top layer. Bad deck stain will also give flawed results when used on a deck or fence.

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Scott Paul ~ Restoring Wood & Decks Since 1993 Owner
As an article and comment contributor to the site, Scott has been around the pressure washing industry since attending college. In 1993 he started his first company called Oakland Pressure Wash specializing in exterior pressure washing and deck staining. That company evolved into OPW L.L.C. shortly thereafter concentrating more on exterior wood and deck restoration. Scott and his Deck Cleaning Michigan company have restored over 10,000 decks in the Metro Detroit area since the early years. He has become an authority in the deck restoration industry and has contributed to numerous wood restoration forums and informative sites. All the products he suggests through this site are sold through online sites and in retail stores, allowing the consumer to choose their own means of purchase. Scott’s eCommerce sites do sell many top brands he endorses and if you appreciate any of the help he has offered then feel free to purchase from one of them.
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