-----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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