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ContinuousWave: Whaler Repairs/Mods
Incorrect Varnishing Method
|Author||Topic: Incorrect Varnishing Method|
posted 10-15-2002 08:32 AM ET (US)
I have a poop-load of varnishing (polyeurethaning?) to do on my Newport (one of the few bad things about a Newport...too much wood!) and my other boat, a 32 ft Luhrs. Both have similiar finished wood conditions...most the finish is intact in pretty good shape, with minor strips or patches weathered off. Can I sand the barren areas and re-coat the all the wood? I certainly don't want to strip all the varnish/poly...we're talking weeks to do that. I'm not a perfectionist...but don't want the economy look either. Thanks for any insight.
posted 10-15-2002 09:04 AM ET (US)
If you know the finish and have more of the same you can do that. Just don't mix poly with varnish ect.
I am not an expert but I do the same with my wood, 'maintenance coat' of same finish.
posted 10-15-2002 12:15 PM ET (US)
Neds: for best results, sand the affected area thoroughly and blend the edges into the good varnish. Lay on a couple of thin coats to this area to build it equal to the thickness of the good varnish. When the new varnish has been built up properly, sand all of it and top coat with two more thin coats, lightly sanding between applications. This method will ensure that there is equal amounts of varnish covering the wood and provide the best chance of color matching to your satisfaction.
posted 10-16-2002 10:57 AM ET (US)
I guess I have to figure out whether I have poly or varnish on there currently, huh? How do I figure that out?
posted 10-18-2002 04:03 PM ET (US)
I agree its best to be consistent with finishes but I don't think it's an issue here. Polyurethanes come a couple different ways- A real polyurethane finish is catalyzed (AWL-GRIP or Sterling)the Minwax Polyurethane you buy a Home Depot has a splash of polyurethane added and really doesn't add much to the finish. If you're really nervous about compatibility do a test spot and check for adhesion and lifting.
Just prep your wood as suggested earlier and use a good quality SPAR urethane. Make sure you don't get a dime store variety. Here are a few suggestions: Epifanes, Interlux, Z-Spar, and AWL-SPAR. The must be hundreds of posts on varnish preferences to search.
posted 10-18-2002 04:05 PM ET (US)
I made a mistake, I meant to write SPAR Varnish!
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