Deck Stains vs. Deck Sealers vs. Deck Paints
It is a common concern of deck owners whether to use a deck stain, deck sealer, or deck paint. There really is not an exact definition for any deck stain, sealer, or paint and many professionals use the terms loosely when speaking about deck coatings in general. But some clarification can definitely help. We will describe which each one is most commonly described as.
A sealer usually does not alter the appearance of the surface. It is applied to protect the surface from such things like foot traffic, water damage, mold, and mildew. Therefore, deck sealers are most commonly any clear, transparent, or translucent coating that protects the wood without altering the appearance.
Deck sealers are popular for those wanting the most natural wood look you can get while still providing water protection. Most deck sealers have excellent water repellency properties but lack in shielding against harmful UV rays causing the wood to turn gray over time.