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Message: <blockquote data-quote="SAABologist" data-source="post: 511498" data-attributes="member: 31667">There is a lot of discussion about this on the forum. I think we tend to over think this and probably spend too much money and  too much worrying about the plywood. Yes, for our boats the marine plywood is just not worth it, in my opinion.If you get B/C EXTerior plywood, not pressure treated, it is good enough to last for years if you prevent water from sitting in the boat while it's stored. My understanding from this forum is the glue is the same as marine grade but there are voids in the layers.  I used B/C EXT and then soaked it with epoxy resin cut with acetone. That was a recommendation found on this forum. It is a great idea and worked great. But I would not do it again. Why? Because for much less money and much greater ease you can treat the plywood with the Old Timer's formula that uses linseed oil. That would have been fine and so much faster and easier. The other reason I would not treat the plywood with epoxy is because I covered the deck with marine vinyl. Because I had created an epoxy finish, I needed to use gallons of the very expensive contact cement. If it had been plywood with linseed oil I could have used the regular glue and saved $100s just on glue and it would have been so much easier. In the end, the deck will last longer than I ever want to have this boat. And it would probably last the same if I had not done the full-blown epoxy treatment.</blockquote>

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