Bridge gain delamination

J Patrick Draine draine@mediaone.net
Mon, 31 Jul 2000 11:57:13 -0400


Dear List:
I just returned from a piano evaluation, for a customer looking to buy a (32 year
old) small model 350 Kawai grand, walnut veneer, for $4500. Everything looked AOK
EXCEPT:
the bridge gain (cf. Mason, he also calls it the bridge core; I'd call it the
bridge body) is separating along the diagonal joint 3-4 notes above the
tenor/treble break. There's minor cracking of the bridge surface at the bridge
pins, but there's clearly been some glue joint failure at the joint in the body of
the bridge (the sides of the bridge are no longer flush, the joint line is too
prominent). No tonal deficiencies because of it (yet).
I'm (optimistically) thinking I could fix this in the home by running screws with
washers through the separated parts, soak epoxy into the slight but real
separation, etc. I'm hoping that with 2-3 sessions the bridge should be AOK.
Have any of you had success with this kind of repair on other Asian pianos (I've
seen this as a problem area on all of their long bridges)?
Or should I tell my customer to back out of the deal?
Comments, Jim Jon Ron Roger et al?



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