How To Make Wood Waterproof
Make sure the cloth is thoroughly saturated with the oil as it is rubbed into the wood until the.
How to make wood waterproof. After allowing the oil to sit for an hour or so pick up some clean rags and begin to rub the residual oil into the woods surface. Step 2 Lightly sand your wood to clean up the surface and allow the grain to be exposed. Repeat the process 2 more times so there are 3 coats of oil on the wood.
To waterproof wood start by sanding it with fine grit sandpaper to remove any imperfections and prep the surface. The most water-resistant sealer you can apply to an existing floor is polyurethane. Lay your wood pieces out on a shop table table saw sawhorses or outside -- anywhere you can seal them safely and effectively.
You want the moisture content as low as possible so that you dont seal in water that will result in rot. However you must do a few things. Apply the waterproofing according to the directions on the original container.
Scrape with either tool until the wood looks completely even on the side that you want to paint. It will highlight every crack in the wood and that wont look pretty. First the wood must be dry.
Finish the surface with fine grit 220 sandpaper. The wood was a tricky one as the water didnt pass straight through the wood to the floor of our house but was absorbed by the wood so it wasnt waterproof. Use linseed or Tung oil to create a beautiful and protective hand-rubbed finish.
By wetting the plywood first the grain is slightly raised. If the wood is untreated it is a good idea to apply a sealant. Assuming that it for some outdoor application and by waterproof you mean completely seal the wood from penetration by moisture you can use marine epoxy.