Learning how to stain pressure treated decks can help you keep your deck looking great, while saving you hundreds in professional labor. Generously apply a cleaning solution of four (4) ounces of 100% powered Tri-Sodium phosphate (TSP) or phosphate-free substitute with one (1) quart of liquid bleach and three (3) quarts of water, to the wood surfaces with a garden sprayer or a heavy nap roller cover. I finished my redwood deck in October & then it rained before the cure was finished!
When applying any type of finish, be certain to follow the recommendations of the paint or stain manufacturer. Thoroughly vacuum the deck, then apply staining sealer to all deck wood with a pressure sprayer or paint roller. The oil based paints will not allow the wood to breathe and this causes checking, warping and peeling of the paint as the pressure treated liquids try to dry. Cleaning and brightening the wood has a lot more value than simply making the wood look nice.
So being a real rebel, I stained that pressure treated wood after only two weeks of the deck being completed. That is how wet it is when you buy it, so painting over non-weathered wood decks will cause the stain not to cure properly and can even ruin the protection of the treated lumber. Allow the preservative to dry for six to eight hours before you walk on the wood. Best practices include using kiln-dried wood and coating every exposed surface of the board. Mold growth can and does occur on the surface of many products, including untreated and treated wood, during prolonged surface exposure to excessive moisture conditions.
A deck brightener was used to remove most of the gray and even out the wood’s tone, then a semi-transparent stain brought life back to the wood with a rich color, adding protection from the sun’s UV rays (bottom). They’re ideal for showing off the natural grain of a premium wood as much as possible, though the wood will still turn gray over time. Composite wood can be made from a combination of ingredients, such as polyethylene or polypropylene mixed with glass, wood fibre, wood flour, as well as other wood and recycled products.
Don’t worry, simply Wash with Lime Clean – Wood and Deck Cleaner and watch as your wood is cleaned and brought back to life! Right now a basement remodel is taking my time, so the deck will have to last one more year (or at least until summer). These types of products allow the natural grain of the wood to show through, allow the wood to naturally breathe, and are easily cleaned and reapplied.
We recommend a good quality oil-based or water-based stain or exterior wood water sealant product. According to the manufacturers of the so-called oil-modified formulations, their coverage is similar to that of traditional water-based products, while at the same time they are easily absorbed into the wood. Back brush the spray, or better yet, use a sponge-pad applicator to push stain deeper into the wood.
The easiest way to wash new wood is to knock loose any dirt or residue using a pressure washer. Lightly sand to remove mill glaze from new wood and UV-damaged fibers from old wood. The top portion of the deck probably took us 15-20 minutes (this stain + sealer only calls for one coat). With deck stains, specifically with semi-transparent finishes, more is not better. If you squeeze the end of a piece of pressure treated wood, you will notice the liquid coming out. Since the pressure treated wood in this video is 10 years old it happily accepted the oil. This will prevent the fence from turning dull and grey in colour over the years.
We mentioned that after finishing it in late August we were told to give the pressure treated wood 2-3 months to dry out before sealing any of the moisture from the treatment in (apparently sealing or staining PT wood too soon can lead to terrible results). Today, a giant industry has grown up around his quest to invent a wood that can last forever. Maintenance through sealing creates a natural wood (pine) appearance due to the transparent or semi-transparent properties of the sealer. If the moisture level isn’t below 15 percent, let the wood dry for an additional day.