Ron in BC
Senior Member
I did coat it with Bondo fiberglass resin, thinking that would make the plywood bullet proof. Wrong. Looking now to do what you done but-- not at Kxkzren prices.
Having a ton of f.g. experience years ago I figured that I'd end my sundeck maintenance once and for all by laying down a a couple of layers of glass and flood coating it with a colored resin. Did that twice and a friend's once before I gave up on depending on f.g. to forever keep the wood safe. Even though it's rolled out and flood coated it seems like there's always pinholes somewhere. Now my vinyl deck has seen many years of service that the decking is still solid.
Even when moisture doesn't get to damage the wood then UV will. Now I use an epoxy sealer and paint it.
Ron