Joe Goss wrote; <<You do not need to use activator if you are able to come back the next day to tune.>> I would have thought so also, but in our dry environment in Phoenix it ain't necessarily so. Here, if you put a large puddle of CA glue on glass, say about the size of a half or silver dollar, 24 hours later it will likely be totally liquid in the center, with just the edges of the puddle cured. Put a tiny bit of accelerator on it and two minutes later the whole thing is cured solid. I did a horrible grand once, very heavily treated with some brown pin tightener that left a heavy sticky residue around the pins. I treated the piano heavily with CA glue, and the stuff was still liquid the next day. ( perhaps there was some interfering chemical reaction) I did not know of accelerators back then, other than water. Consequently, now when I treat the whole piano now, I go back and at the base of each pin I put a microscopic drop of the accelerator, using a 1 cc insulin syringe with a #25 needle, which is incredibly tiny, and makes very tiny drops. Across the whole piano I use only one or two cc's of accelerator. You can see the CA glue cure solid and wrinkle a bit. Joe Goss said; <<When using the activator as a spray, try to protect the bass strings by shielding them with an old newspaper or anything handy, held in your hand and moving it along as you spray.>> BIG QUESTION - Is it a good idea to spray the stuff over the pins, coils, plate, etc???? According to the Material Safety Data sheets I have, most accelerators are just Dichlorofluoroethane. It is 100% volatile, rather rapidly at that, and if it doesn't hurt the plate, finish, strings,etc, - then why not mist it on? I have been too cautious to do so, but I would like to hear of any other's experience and any problems in doing so. Thanks, Bill Simon Phoenix
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