Epoxy on Carvel planking - SailNet Community
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post #1 of 3 Old 03-02-2001 Thread Starter
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Epoxy on Carvel planking

Hi all,

I just purchased a 42'' carvel planked schooner. The planks are fir on oak frames. The frames are 2 1/2'' x 3 1/2" sawn ribbing. I should also mention that each rib was sistered during the original construction, so you could say the framing is actually 5" x 7". The planks are 6" wide, and 1 3/4'' thick. The survey has shown that roughly 25% of the port side and 50% of the starboard side of the hull below the waterline, should be replanked, due to teredo worms.

My question is this. I am considering repairing the planks that need to be replaced, and then giving the hull an epoxy coating from the waterline down. First, is this considered a sound practice, second, can I do just an epoxy coating, or do I need to fiberglass as well. I do realize that with an epoxy coating on the exterior, I''d need to be extra diligent about moisture on the interior.

Another question, is it reasonable to think that I can keep the bilge relativly dry too, or should I consider an exterior AND interior epoxy coating for at least the bilge. I really don''t want to replank the entire boat from the water line down and epoxy the inerior and exterior, mostly because I''m not sure how long it will take. If the repairs go relatively quickly, then it might make sense to take the extra time I guess.

Anyways, any thoughts would be helpful.

Chris Kelly and the Schooner Etain
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post #2 of 3 Old 03-05-2001
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Epoxy on Carvel planking

I owned wooden boats for years until I got religion and switched to glass. Replacing planks is much easier than you might suspect, especially when you have existing planks to use a patterns. DO NOT GLASS OVER OR PAINT OVER WITH EPOXY! You can, and I have seen many fine examples of glassing over the existing hull. It is an elaborate process, requiring more skill than replacing planks I can assure you. Anyway, why own a wooden boat if you want fiberglass?
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post #3 of 3 Old 03-10-2001
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Epoxy on Carvel planking

Carvel is almost impossible to coat effectively because of the seams. Any working, the epoxy cracks, and the point of the exercise is lost.

The only timber construction I would consider it with is strip-planking.
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