Silicone can be difficult to remove if you choose to repaint your wood. You can waterproof most types of paint by coating them with clear polyurethane or acrylic. This method can be as effective as ...
"[Its] durable finish will make wood more water-resistant, but not waterproof," Otto says ... a special-purpose primer like Kilz Restoration before painting. "Acrylic paint hardens with a really nice ...