I understand your experiment and can believe your result. However, did you drill your trial through pinblock material? I used thin visc. CA glue on some of the loosest, driest, cracked and worst pianos I have ever encountered in the desert region of Africa last year. When I returned to check these pianos I found them holding well after the applications of CA were applied. One piano had no torque on most pins and after two applications of CA glue it was holding at 50"lbs to 70" lbs. Even after a year it was holding at similar readings. I have written about how and what was done on the list before. I still believe thin visc. My field studies have me convinced. CA has a definite place in assisting torque on old beater upright pinblocks and will use it again. Ed Tomlinson << I did do some experiments of my own though, and glued two pieces of maple together......... on application of tensile force, the glue joint did not break, but the wood separated leaving timber on both sides of the glue. I also drilled a piece of maple to be a couple of "thou" loose on a tuning pin, filled with CA and left it over night,(this is the time it takes to achieve full strength).The following morning, the pin was at first stiff, but with a little more "shear" force, the CA broke down. This convinced me that it was not the stuff for loose tuning pins! >> Ed Tomlinson Cascade Piano Piano Sales/Piano Technician
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