Even if your deck is made of pressure-treated lumber, redwood, cedar, or some other durable species, it’s at risk the moment the last nail is driven home. Moisture swells the wood while the burning rays from the sun dry and shrink it, causing cracks and checks while also encouraging warping. Q: I have a deck built of pressure-treated lumber that absorbs rainwater like a blotter. Generally, the water protection should be started soon after construction, although some new, premium grades of pressure-treated wood are sold with a built-in water sealer that lasts a couple of years (Wolmanized Extra is an example). How to Seal and Stain Pressure Treated Wood Decking. Most decks are made from pressure treated pine.
Weather wreaks havoc on unprotected wood, even pressure-treated pine, tropical hardwoods, cedar, redwood, and others that are resistant to rot and insect damage. A clear sealer will slow down or in some cases prevent water migration into the grain. A durable, clear waterproofing sealant that allows wood to weather and gray naturally. New wood, pressure-treated wood, weathered wood and wood with a weathered solvent-based clear or semi-transparent stain. Pressure treated wood is a must for many outdoor projects, but it requires different handling than untreated woods. Applying a sealer can protect against CCA exposure.
Apply one coat of Rainforest Sealer or Mountain XT the first year so the wood can acclimate safely. Market leaders recommend waterproofing of pressure treated lumber as soon as 3 months. Pressure treated lumber is heavily treated with chemicals and other materials when it is manufactured. Staining pressure treated wood..it can be a pain!! Check out my tips to make this an easy and FUN project. It can be a pain!! Check out my tips to make this an easy and FUN project. If you have a sealant on it you’ll have to make sure it doesn’t bead when water is placed on it.
Finishes For Wood Decks
Concerned about the health problems associated with pressure treated, CCA wood? Don’t replace the CCA wood, use Seal-It CCA Sealant to isolate the poisons, while prolonging the life of your structure.