marine varnish over varathane?

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Forum topic by Adam Weis posted 10-26-2010 10:00 PM 4149 views 0 times favorited 3 replies Add to Favorites Watch
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Adam Weis

36 posts in 4048 days

10-26-2010 10:00 PM

A friend of mine made a beautiful cedar bench and applied a first coat of outdoor varathane. I told him that outdoor varathane was probably not a durable enough finish for a bench in the direct sun and the oregon rain. does anyone know if it is advisable to put marine varnish over a first coat of varathane? has anyone ever tried it?

If i had caught him earlier i would have just said use deck sealant and reapply every year. that way the bench would age gracefully, but stripping the finish at this point seems like an inordinate amount of work.

-- Adam,

3 replies so far

View CharlieM1958's profile


16275 posts in 4246 days

#1 posted 10-26-2010 10:10 PM

I can’t say I’ve done it, but I see no reason why the two finishes would be incompatible. The marine varnish just has more UV inhibitors in it.

-- Charlie M. "Woodworking - patience = firewood"

View grizzman's profile


7836 posts in 3331 days

#2 posted 10-26-2010 11:04 PM

i believe there both an oil based finsih and should work just fine…but ive never done that combo personally., but my thought is it should be ok..stripping it would be way to much work..your idea of a deck finish is a good it would age gracefully and applying it is a breeze..

-- GRIZZMAN ...[''''']

View shipwright's profile


7992 posts in 2826 days

#3 posted 10-27-2010 02:14 AM

Both will fail at the wood / finish intersect eventually and require sanding to bare wood. I’d use Cetol.

Paul M

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

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