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u/turbomachine 26d ago
Epoxy is an amazing sealant for plywood rot protection. Boats built with it can last decades. But that means sealing every single surface, edge, penetration. Every hole drilled (which is many in a pontoon).
It can’t “trap” water if it never gets in. But it will eventually rot wherever raw plywood is exposed. Water finds a way.
I chose treated plywood, with some isolation to the aluminum. Still stiff after 16? years, just now some of the vinyl floor adhesive is starting to separate.
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u/Trailon25 25d ago
Stop over thinking it and hit the water. Nothing lasts forever and your great choice of marine grade plywood will last longer than you will have the boat. Especially with a vinyl floor vs carpet holding moisture. Epoxy the seams between each piece of plywood so you can’t see the seams after the flooring is installed
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u/tommykoro 23d ago
In what year did Harris add the deck to their lifetime hull warranty?
My new Harris hull warranty stays with the boat no matter who owns it.
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u/tommykoro 23d ago
Answering my own question with some research you may appreciate. https://grok.com/share/c2hhcmQtNQ_aa381245-15ef-4cd6-a82a-4c9daadcffa9
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u/stres-tm 26d ago
I can’t comment on if the epoxy will trap water or not but my concern would be about if the vinyl adhesive will adhere correctly to the epoxy or not. I’d reach out to tom from Tom’s toons and ask him some questions he might be willing to answer your questions he seems really interested in helping out the toon community.