Subject: Fiberglass/Wood Boat
Date: Mon, 01 Jun 1998

I am currently considering purchasing a fiberglass boat with some exposed wood under the deck. The wood is painted plywood. I want to seal this wood before there is a chance for it to rot. Will the Clear Penetrating Epoxy Sealer seal this wood even though it is painted?

David S.

No, the paint must be removed, or at least 90% of it. CPES will not penetrate effectively through paint.

However, I should point out that the wood hardly ever rots from below. Usually it deteriorates because water gets in between the glass deck and the wood underneath. Check deck/hull seals, deck fittings, etc. and make sure they are securely bedded and tightened down. As a precautionary measure, you can apply the CPES into all cracks and holes before sealing. We recommend you use a polyurethane sealant such as 3-M 4200 or 5200.