Thumper said: ". And I have seen where the pneumatic cloth has crept ( at 1/1,000,000,000,000 mph ) on its hide glue base in pianos that have no other apparent humidity damage. Respectfully, Thump" Was this on the pueumatics you did or on an olde system? I suspect an olde system. What ya need to know is that many manufacturers used a cheaper glue, called Fish Glue. That stuff will do exactly as you describe. At least that has been my experience. If you use the highest grades of Hide Glue, you will not have problems. Two problems encountered by many, I've seen: 1. incorrect heat in the pot=Get a thermometer! 2. Cheaper quality glues that defy you to get it right=Get The Good Stuff! (I've got it. Few others do!) Best Regards, Joe Garrett, RPT, (Oregon) Captain, Tool Police Squares Are I
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