shellac under varnish

[Farrell]

Dewaxed shellac is available:  http://www.homesteadfinishing.com/htdocs/Shellaccatalog.htm

Terry Farrell
  
----- Original Message ----- 
From: "Paul Chick (Earthlink)" <tune4@earthlink.net>
To: <davidlovepianos@earthlink.net>; "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, September 09, 2003 1:28 PM
Subject: RE: shellac under varnish


> 
> 
> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
> Behalf Of David Love
> Sent: Thursday, August 28, 2003 10:37 AM
> To: Pianotech
> Subject: shellac under varnish
> 
> 
> Why is it that many varnish manufacturers advise not to use their products
> over shellac.  It is my understanding that shellac was traditionally used
> as primer coat for varnishes?
> 
> 
> David Love
> 
> David
> The natural wax in shellac is the problem.  I spoke with the manufacturers
> of Bull's Eye brand shellac, and they told me that finish makers advise
> against applying their product over shellac as their "hedge" against
> adhesion problems due to wax.  Bull's Eye now comes in a 2 pound cut that is
> gauranteed to work under any finish.  It has become a standard barrier coat
> in my refinishing procedure.  To date I've had no problems.
> 
> Paul C
> 
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