----- Original Message ----- From: "gordon stelter" <lclgcnp@yahoo.com> To: <davidlovepianos@earthlink.net>; "Pianotech" <pianotech@ptg.org> Sent: February 28, 2003 9:17 AM Subject: Re: System Three Varnish > Spar varnish is spar varnish because it remains > flexible to cover shrinking and swelling wood in > outdoor use. If you wanted to deaden a soundboard I > can think of no better thing to put on it except, > perhaps, a rubber mat. > Respectfully, > Gordon Stelter Nope. Spar varnish is called spar varnish because it contain UV (ultraviolet light) blockers. UV is the death of clear varnish and epoxy. As it stated in the articles, epoxy must be protected (covered) by some kind of finish containing UV blockers. Spar varnish is a good candidate for this, as is some types of lacquer (they must contain UV blockers--check with the manufacture). Nearly all finishes intended for use on wood have a certain amount of plasticity built into them. Else they would simply crack and check like crazy as the climates change. Much like the varnishes of the early 20th century commonly did. No, I have not tried System Three Spar Varnish but I suppose I should. Del
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