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Mahogany seat, epoxy or varnish

Old 05-05-2020, 11:24 AM
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Default Mahogany seat, epoxy or varnish

I got a piece of 5/4 mahogany for the seat of the "free" 13 Whaler I am fixing up. My daughter did a cool painting of a seal on it.
The paint is pretty thick so I am worried it might get damaged with just spar varnish. I am thinking of a thin coat of epoxy and then 4-6 coats of varnish. I also got satin varnish not gloss.
Any thoughts?



Last edited by muskrattown; 05-05-2020 at 11:28 AM. Reason: add picture
Old 05-05-2020, 04:54 PM
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Urethane. Epoxies don’t care for uv sunlight and usually are hard which means there easier to scratch. Beautiful art work
Old 05-05-2020, 05:50 PM
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Strip built kayaks are epoxy over wood. Several coats of a good varnish with UV inhibitors over the epoxy, keeps the epoxy protected. My feeling is that's the best way to go. Raka epoxy is also a good choice according to exposure tests I have seen.
Old 05-06-2020, 05:40 AM
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Originally Posted by capt13 View Post
Strip built kayaks are epoxy over wood. Several coats of a good varnish with UV inhibitors over the epoxy, keeps the epoxy protected. My feeling is that's the best way to go. Raka epoxy is also a good choice according to exposure tests I have seen.
This is what I was thinking. I was afraid the varnish alone would not be as hard a protection for the paint.
Thanks
Old 05-06-2020, 05:43 AM
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Originally Posted by Delduck View Post
Urethane. Epoxies don’t care for uv sunlight and usually are hard which means there easier to scratch. Beautiful art work
I am planning on multiple coats of spar varnish over the epoxy. The painting was by my daughter. My granddaughter named the boat "the white seal on the white sea" no idea where she came up with that but it inspired the art work.
Old 05-24-2020, 07:07 PM
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Pettit flagship 2015

suggest practicing on scraps. Many have an ambering effect. Not sure what white will look like underneath.
Note. I don’t know what the finish below will do to paint. Test on scrap and adjust as necessary. Maybe tape off and do the regular wood. You can always just overcoat it. Flagship is my go to. Very good finish.

my suggestion as a woodworker on mahogany:

try on scrap to perfect technique.
1. Tung oil 3 coats (Let dry)
2. 3 coats of shellac. (Dewaxed is the clear, waxed is amber color depends on effect you want). I’d try dewaxed (clear) on mahogany. Light sand after all coats are applied 400 or 800 grit. Looking for even finish.
Note: this dries fast on you, minutes. If you get runs (more like when) just put a little on a pad or brush and scrub runs out. Shellac is alcohol based. And makes a good sealer and universal bonding agent.
3. 4-6 Light coats of Pettit flagship. Give lighter sandings as you go. 800, 1500. You’re trying to knock highs down. 2000 after end to get drips or fine particles.

it sounds scary but it’s really easy with some practice. Here’s some teak done this way.
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Last edited by Xcomunic8d; 05-24-2020 at 07:27 PM.
Old 05-25-2020, 12:57 PM
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Epoxy with coats of varnish over the top would be my choice. I do agree that it may change the color of the painting some.

Old 05-28-2020, 05:46 AM
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Epoxy with good varnish over it sound like the way to go. I have had good UV luck with Epifanes one part high gloss varnish over West epoxy. The ultimate way to preserve and protect that beautiful artwork is to have a Sunbrella canvas cover made for it after you finish it with epoxy and varnish. A small cost to preserve such a nice piece.
Old 05-28-2020, 05:47 AM
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Epoxy with good varnish over it sound like the way to go. I have had good UV luck with Epifanes one part high gloss varnish over West epoxy. The ultimate way to preserve and protect that beautiful artwork is to have a Sunbrella canvas cover made for it after you finish it with epoxy and varnish. A small cost to preserve such a nice piece.
Old 05-28-2020, 06:01 AM
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Thanks for the replies. I went with 2 very thin coats of epoxy and seven coats of Helmsman satin spar varnish. Delivering boat today for grand kids. The bow hatch and second seat are still getting a few more coats before they join the fun.
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