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varnish turned yellow and cloudy
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4 replies:
RE: varnish turned yellow and cloudy
Only use a marine urethane if it has UV inhibitors in it! You absolutely need them to protect the epoxy. If you don't protect it it will look good for a few years but will be degrading under the varnish. Not really sure what happened with your varnish this time, I put seven coats of Epiphanes on my boats 8 years ago and it's withstood Florida sun and trips all over the east coast. Best thing to do is what Wes said, sand it off and re-do.
George K
RE: varnish turned yellow and cloudy
George is right about the UV inhibitors. I have had very good experience with Minwax Helmsman Marine Urethane. My Merganser hybrid still looks like new after three seasons of hard use in salt water and fresh. -Wes
RE: varnish turned yellow and cloudy
Thanks for the advice. the epoxy should have been fully cured because I did not varnish right away...looks like I have a fall sanding project now, let the fun begin !
RE: varnish turned yellow and cloudy
» Submitted by twofootartist - Fri, 10/19/12 » 6:24 PM
That's really strange. Was the epoxy fully cured before you varnished? It takes a week or more for full cure. You will probably have to sand off the varnish. You can save yourself a lot of work refinishing if you forget the traditional varnish and use a marine urethane. It applies easier, takes fewer coats, dries harder and much clearer, and lasts longer. -Wes