System Three Varnish

Delwin D Fandrich pianobuilders@olynet.com
Fri, 28 Feb 2003 11:14:04 -0800


----- 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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