Won't hold up, won't help. Whatever material you fill the cracks with needs to be able to expand and contract like the panel or it just cracks again. Also, filling the crack in this manner won't change the soundboard response anyway. With respect to cracks, the biggest concern is rib separations. Those should be repaired as they can make noise. Soundboard cracks don't on both counts. David Love davidlovepianos at comcast.net www.davidlovepianos.com -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Annie Grieshop Sent: Saturday, February 09, 2008 4:51 PM To: Pianotech List Subject: Soundboard repair question This question was posed to me yesterday by the facility manager of a local community center: could a cracked soundboard be repaired by dripping CA into the crack (as is done with bridges)? My questions were: would CA hold up and would it help? I didn't know the answers to any of those, although I could hypothesize some. BTW, I told him NOT to try it, since both the pianos with cracked soundboards are Steinways: a 1950s B and a 1931 L that's been rebuilt and refinished. And nobody ever mentioned (or remembered) to think about humidity control. Harrumph! The cracks aren't horrid, but they are there. Thanks for any comments. Annie G.
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