Wooden Boat People
By McKenzieDriftBoat.com
checked plywood...oil or varnish?
about ready to get started on doing the interior, and i have been holding out on a descision. my fir plywood was left out in the weather unprotected for a few years and is pretty badly cracked and checked. i've sanded it smooth and am ready to finish it. was hoping to go the oil route, but was concerned about the checked plywood. would it be bteer to seal this up with epoxy and spar varnish, or will the oil penetrate enough that it will inhibit future checking and delamination of the plywood? looking more for fnction here...i'm a painter so i'm sure i can make either look good.
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Replies to This Discussion
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Permalink Reply by Steven Miller on
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I am going to oil mine. From what little I know about this type of wood if it hasn't checked yet oil will help keep the wood from warping (checking) But I don't know what it would do to the checked sections. Probably inhibit the growth of it at the least.
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Permalink Reply by Charles Ray Heater on
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Once the Fir plywood has checked, it will continue to check. Oil soaked will inhibit the surface but it will always be checked, not smooth. The only way to eliminate the checking is to epoxy with 4 oz.or 6 oz. fiberglass cloth. Obviously this should be done to the panel before the panel is attached to the frames.
I do not recommend epoxy without cloth as a repair. Your choices, given that you are a painter, would be to oil soak the interior and deal with oiling heavily every year or you could oil, primer and paint provided you keep the boat inside. Done this way the checking may not be so much of a problem. We have a 20 year old Keith Steele that has been done this way. Steele never used epoxy with fiberglass cloth as a coating but we are having fair results with the oil, primer and paint on the original finish. The boat is always stored inside.
Ray
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