I have repaired a hole in the bottom of my boat with fiberglass. What should I put over the fiberglass? I had planned on gel coat but some info I have seen online has said epoxy would be better. By the way, it is a 16 year old bass boat and I'm not concerned about what it looks like since you can't see it unless you crawl under the boat. I just want it to be structurally sound and not leak.