Ron, The research I mentioned was pertaining to permeability issues , sorrythat wasn't clearly stated. The reports that you claim about increases instability are probably design related not finish differences, and arejust as speculative as me saying lacquered boards need doubleduty damp-chasers. If I indeed implied that varnish is a determining stabilityfactor, well, I'll back the truck up on that one. The real question I have is if you know that varnish provides a better moisture barrier in the first place, why use a coating with less moisture sealing properties? Because it's easier?
--- On Tue, 2/15/11, Ron Nossaman <rnossaman at cox.net> wrote:
From: Ron Nossaman <rnossaman at cox.net>
Subject: Re: [CAUT] Steinway rebuilds
To: caut at ptg.org
Date: Tuesday, February 15, 2011, 8:43 PM
On 2/15/2011 9:18 PM, Brent Fischer wrote:
>
> I'm going to take the high road on responding. Research proves my
> point, I'm just repeating it.
Research? On piano tuning stability as a result of using varnish instead of lacquer on soundboards? That would make entertaining reading.
> Proving stability differences is just a mute point.
Well, no. That seems to be exactly the point.
> However, too many rebuilders use lacquer on
> boards because it's easy, not because it's in the best interest of
> the instrument.
At least a couple of techs providing service to my lacquered soundboard redesigns have reported that they are notably more stable than the original. There are a number of parameters for tuning stability in design and build of soundboards that are argued by non designers and builders of soundboards, but there is ample evidence that varnish is not the magic ingredient that provides stability.
Ron N
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