Greg, I had been led to believe that resorcinol glue was a very good expensive glue. Our store sold Sohmer pianos for the last 25 years of their NY production. The Sohmer brothers extolled its use and had it throughout the piano. They praised its use because of its waterproof and strength abilitys. I know their tuning pins were very tight, but they were tunable. One can see the dark color of the glue in the layers of the quater sawn pin block. Looks a bit like the new Gorilla glues. Is the problem really the glue or under drilling of the pins --- or both? Carlos Ralon, RPT ----- Original Message ----- From: Greg Newell To: pianotech at ptg.org Sent: Thursday, December 03, 2009 9:15 AM Subject: Re: [pianotech] Tight tuning pins I wonder if backing them out will create more heat which would make the resorcinol gummy. Depending on how long you wait (seconds, minutes, hours) to put the pins back in and whether or not the pins are already contaminated with the same resorcinol you might recreate the same problem. Just a thought. Greg Newell Greg's Piano Forté www.gregspianoforte.com 216-226-3791 (office) 216-470-8634 (mobile) http://www.wealthyaffiliate.com?a_aid=NNaYfMKd From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Randy Rush Sent: Thursday, December 03, 2009 1:14 AM To: pianotech post Subject: [pianotech] Tight tuning pins Regarding the recent discussion about dealing with tight tuning pins when a piano has been restrung with oversize pins, can anyone speak to the efficacy of backing out the pins with a drill and then pounding them back in on an original condition Baldwin grand from the 80's with that stupid Resorcinol-laden pinblock? (Same problem, pins very tight and jumpy, lots of cracking noises.) I'm thinking this technique is at least worth a try on one that I have that is a particular problem. Randy Rush Seattle -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091203/bc395e04/attachment.htm>
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