Board finish

[Stéphane Collin]

Hi Joe.

While poly urethane is of course not the traditional way to varnish a 
soundboard, it is interesting to note that the Alfred Jahn company (Germany, 
they are like Pianotek out there, www.pianoteile.com ) have a quite 
extensive paper about it's benefits.  I just bought their both solutions for 
soundboard varnishing, so to give them a try : a traditional receipe and the 
poly urethane.  Of course, poly urethane looks like way easier to apply, and 
they claim they found one that sounds good (hoping to raise comments about 
influence of varnish on sound).
Their catalogs are online.

This looks like the same thread about what can you change compared to 
original design until you end up with something else than original 
authority.

Best regards.

Stéphane Collin.

----- Original Message ----- 
From: "Joe And Penny Goss" <imatunr at srvinet.com>
To: "Pianotech" <pianotech at ptg.org>
Sent: Wednesday, July 18, 2007 4:09 PM
Subject: Board finish


> Hi,
> Had a call questioning the finish on the sound board of a S&S.
> I did not ask who had done the work but it was a local tech.
> They had used poly urathane and the coustomer wanted to know
> if this would compromise the value of the instrument.
> I got the feeling that they felt the instrument was nolonger a S&S
> since that was not the original finish that was used.
> I may be using some of your answers in follow up to her
> Thanks
> Joe Goss RPT
> Mother Goose Tools
> imatunr at srvinet.com
> www.mothergoosetools.com