<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=us-ascii" = http-equiv=Content-Type> <META content="MSHTML 5.00.3502.5390" name=GENERATOR></HEAD> <BODY> <DIV>Wim, Not only will I not blast you for using the stuff, I will say that if you = work on Steinway hammers at all, you must use some kind of hardener. Ronsens = too. They are designed that way. I like working with these hammers. You can get = beautiful tone with them. Takes work. As do any other hammers. Different = technique, same result.</DIV> <DIV> </DIV> <DIV>Alan McCoy</DIV> <BLOCKQUOTE style="BORDER-LEFT: #800000 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: = 5px"> <DIV align=left class=OutlookMessageHeader dir=ltr>-----Original Message----- From: = caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]On Behalf Of Wimblees@aol.com Sent: Friday, April 25, 2003 9:08 AM To: Pianotech@PTG.org; caut@ptg.org Subject: = melting plastic SOT </DIV>Melting Plastic, SOT, (Slightly = Off Topic.) For hammer juice, I use acetone and keytops. I keep = this solution in a plastic bottle. I'm no chemist, so how come the = acetone dissolves the plastic keytops, but doesn't  dissolve the plastic = bottle in which it is kept? Wim  PS. Before I get blasted = for using this stuff in the first place. please be assured I use it very = sparingly only on Steinway hammers when I voice. These Steinway hammers are = first given a liberal dose of lacquer and lacquer thinner, as per factory = specification. I don't use any kind of juice on other hammers. (I keep the lacquer = mixture in a plastic bottle too, (a mustard bottle), and it doesn't dissolve either.) </BLOCKQUOTE></BODY></HTML>