A good two part epoxy with some type of high density filleting blend will have very good compression strength and shouldn't creep unless you don't get enough in to fill the void. David Love www.davidlovepianos.com -----Original Message----- From: Douglas Gregg <classicpianodoc at gmail.com> Sender: pianotech-bounces at ptg.org Date: Thu, 11 Nov 2010 15:28:10 To: <pianotech at ptg.org> Reply-To: pianotech at ptg.org Subject: [pianotech] Re. green piano with bass bridge problem I think I will chime in here with a tip on bass bridge repair. I had one of these repairs fail with just epoxy. I reasoned that epoxy is really "plastic" as in having plasticity. Under constant tension from the string, the plastic slowly deforms and allows the pin to creep over again. My solution was to put a filler behind the pin that has tipped over. i considered toothpicks but thought it might crush eventually. I chose steel. It has to be tapered to fill the gap correctly as the pin is actually flagpoling over. I cut the head off of large carpet tacks and push them in behind the pin burying them in the bridge. Sometimes I use two. then you can use any kind of glue you want or none at all and the repair is solid. Douglas Gregg Classic Piano Doc Southold, NY 11971
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