<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1476" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Clyde H. said: "<FONT face="Times New = Roman" size=3>I hope you can help me with this problem.<BR><BR>I service on = old upright piano for which a previous technician installed <BR>new plastic keytops, = probably a couple decades ago.  They keep coming <BR>off; nearly = every one has come off at least once.  I used to use <BR>Dryburgh superglue, = but they began coming off again, so I switched to <BR>Weldwood contact cement, = and that nearly always does okay for me, but <BR>not on this piano.  This = has been a chronic problem for years.<BR><BR>Do you have a never-fail suggestion = for some other glue? "</FONT></FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Clyde,</FONT></DIV> <DIV><FONT face=Arial size=2>This is precisely why I quit putting = keytops on with contact cement! The darned stuff breaks down after a while and it = will not be "rejuvenated"! I use PVC-E and find it is satisfactory, although it = takes longer to set up and, IMO, needs to be clamped. PVC-E will adhere to = that olde contact.</FONT></DIV> <DIV><FONT face=Arial size=2>Best Regards,</FONT></DIV> <DIV><FONT face=Arial size=2>Joe Garrett, R.P.T.<BR>Captain, Tool Police<BR>Squares R I</FONT></DIV></BODY></HTML>