Bare Plywood vs. Paint

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propgun
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Bare Plywood vs. Paint

Post by propgun » Tue Mar 27, 2018 5:22 pm

Working on the SK14, no glass on the deck or hull sides (except for some overlap from hull)....

With typical glass I’d go wood, glass, fairing, primer and then paint.

So with wood, should it be

Wood, epoxy coat, fairing, primer, paint

Or wood, fairing, primer, paint.

Talking meranti, not luan or anything weird. Plans don’t seem to include epoxy for a skim coat, but I’m sitting on an extra gallon anyway. Just wondering if paint and fairing compound are enough protection here.



Browndog
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Re: Bare Plywood vs. Paint

Post by Browndog » Tue Mar 27, 2018 5:42 pm

Typically, builders put on a coat of epoxy on all of the marine plywood, both sides and edges whether glassed or not to provide a water barrier. After the epoxy it depends on If you are going for a”clear finish” or not. If the plywood is to be painted then it pretty much follows your plan.

Good luck with the finish of your boat.

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jacquesmm
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Re: Bare Plywood vs. Paint

Post by jacquesmm » Tue Mar 27, 2018 6:54 pm

All my designs should have all the plywood epoxy coated. Absolutely all parts, no exception. It should say so in the building notes, if not I will add such a note.
After the epoxy coat, the plywood should be painted or varnished because the epoxy degrades under the sun UV's. After a couple of years, it begins to chalk.
Jacques Mertens - Designer
http://bateau.com

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topwater
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Re: Bare Plywood vs. Paint

Post by topwater » Wed Mar 28, 2018 8:29 am

Do at least 3 coats and dont sand threw it.
Novi 23 finally launched !

OneWayTraffic
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Re: Bare Plywood vs. Paint

Post by OneWayTraffic » Thu May 17, 2018 5:44 am

And make sure that edge grain gets extra attention.

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