Hi All For your clarification and to try and help Stéphane sort this out: Here is the exact quote from the good folks at Tite-Bond themselves. Sounds to me like the folks at Tite Bond will not recommend liquid hide glue for this application. "The Titebond Liquid Hide Glue is sensitive to humidity, even when dried. At the least, it can soften in the humidity you describe. If the substrates part during that time, the bond will fail. If the substrates remain together during that time and the humidity lowers, the bond will remain. I hope this answers the question." This answer was give in response to the following question, also an exact quote "Some European technicians told me it would possibly fail in an environment which has more than 50 % relative humidity. What do you think ?" ...... "The piano might undergo a relative humidity level of 60 % here. Will the liquid hide glue joint stand this ? On the open portion of the perimeter, the only stress the joint will undergo is the dimensional change of the board under relative humidity change."
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