There are three foolproof ways to waterproof wood for years to come. Use linseed oil or tung to create a beautiful, protective, hand-rubbed finish. Seal the wood with a layer of polyurethane, varnish or lacquer. Finish and waterproof wood simultaneously with a combination of stain sealer.
Then lightly sand the wooden furniture with fine-grained sandpaper. If you are going to apply wood stain to your furniture, you should do so after cleaning and sanding the wood, but before applying the sealant. Use a brush to apply the dye. Your wooden furniture is now ready to dry.
Allow it to dry for at least 24 hours before exposing it to wet or wet conditions; if rain is expected, cover the furniture with a tarp to protect it from rain. Using natural oil such as linseed oil or walnut oil is a fantastic way to waterproof your table and protect it from the sun, mold and insects. Whichever option you choose, you'll have a sturdy, waterproof table in no time. Start by staining the wood with a waterproofing dye.
This will help protect the wood from moisture and will also give it a protective layer. Once the stain is dry, apply a layer of sealer to the top. The sealant will have to be reapplied every few years, but it will help keep the wood in good condition for longer.