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Author Topic:   polyester resin on wood?

Theron1033 posted 03-02-2012 10:51 PM ET (US)
i sealed all my 13' whalers mahogany interior with thinned polyester resin an then applied 3 coats of high quality spar varnish. has anyone ever tried this? so far so good for me.
pcrussell50 posted 03-03-2012 12:15 PM ET (US)
Surfboards are made with it. It yellows pretty easily in the sun. Did you add UV protection? I hear it helps some , but not sue how much. yellowing might not be too noticeable over wood--guessing.
-Peter
Binkster posted 03-03-2012 06:59 PM ET (US)
I doubt that anyone else has tried your method, seems pointless to me. There are other ways to seal mahogany. How about a couple of coats of thinned varnish. I bet you had to sand quite a bit before you varnished.
rich
Theron1033 posted 03-03-2012 09:45 PM ET (US)
well the main reason was that i was limited to a pint of varnish for all my interior, and so sealing the wood with a different material would alloy me to only apply 3 coats instead of the usual 10, and also read that sealing the wood before varnishing makes it last allot longer. people use epoxy resin all the time to seal wood and then varnish over it, but I've never heard of polyester resin being used
andygere posted 03-05-2012 01:32 AM ET (US)
Varnish over polyester resin will work just fine. Why were you limited on the amount of varnish?
rong posted 03-05-2012 08:21 PM ET (US)
Yes, that was a great idea. I sealed my wood with 3 coats of West System epoxy. I sanded each coat and varnished with 4 coats. The wood will last much longer using this method. Also, the screws will not sink into the wood making it a more sturdy surface.
If you use a marine varnish. You will have no issues with yellowing of the wood.
Theron1033 posted 03-06-2012 07:25 PM ET (US)
Thanks for the replies! i used a high quality z-spar marine varnish with great uv protection, so im hoping for no yellowing of the polyester resin!

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Author	Topic: polyester resin on wood?
Theron1033	posted 03-02-2012 10:51 PM ET (US) i sealed all my 13' whalers mahogany interior with thinned polyester resin an then applied 3 coats of high quality spar varnish. has anyone ever tried this? so far so good for me.
pcrussell50	posted 03-03-2012 12:15 PM ET (US) Surfboards are made with it. It yellows pretty easily in the sun. Did you add UV protection? I hear it helps some , but not sue how much. yellowing might not be too noticeable over wood--guessing. -Peter
Binkster	posted 03-03-2012 06:59 PM ET (US) I doubt that anyone else has tried your method, seems pointless to me. There are other ways to seal mahogany. How about a couple of coats of thinned varnish. I bet you had to sand quite a bit before you varnished. rich
Theron1033	posted 03-03-2012 09:45 PM ET (US) well the main reason was that i was limited to a pint of varnish for all my interior, and so sealing the wood with a different material would alloy me to only apply 3 coats instead of the usual 10, and also read that sealing the wood before varnishing makes it last allot longer. people use epoxy resin all the time to seal wood and then varnish over it, but I've never heard of polyester resin being used
andygere	posted 03-05-2012 01:32 AM ET (US) Varnish over polyester resin will work just fine. Why were you limited on the amount of varnish?
rong	posted 03-05-2012 08:21 PM ET (US) Yes, that was a great idea. I sealed my wood with 3 coats of West System epoxy. I sanded each coat and varnished with 4 coats. The wood will last much longer using this method. Also, the screws will not sink into the wood making it a more sturdy surface. If you use a marine varnish. You will have no issues with yellowing of the wood.
Theron1033	posted 03-06-2012 07:25 PM ET (US) Thanks for the replies! i used a high quality z-spar marine varnish with great uv protection, so im hoping for no yellowing of the polyester resin!