[pianotech] Re. green piano with bass bridge problem

David Love davidlovepianos at comcast.net
Thu Nov 11 15:14:16 MST 2010


What kind of epoxy?  

David Love
www.davidlovepianos.com


> 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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