<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" http-equiv=Content-Type> <META content="MSHTML 5.00.2919.6307" name=GENERATOR></HEAD> <BODY> <DIV>HI Dave -</DIV> <DIV> </DIV> <DIV>I have never used milk to clean anything, either, but over the years several customers have mentioned to me that their grandmother used to clean= ivory keytops with milk.  Supposedly "conditioned" them, too.  I = have never heard about using it on plastic, though.</DIV> <DIV> </DIV> <DIV>I will pose the question to a chemist I know, and if I get any answers= worth passing on, I will certainly do so....</DIV> <DIV> </DIV> <DIV>Mark Potter</DIV> <DIV><A href="mailto:bases-loaded@juno.com">bases-loaded@juno.com</A></= DIV> <DIV> </DIV> <DIV> </DIV> <DIV>On Mon, 30 Apr 2001 19:18:02 EDT <A href="mailto:DGPEAKE@AOL.COM">DGPEAKE@AOL.COM</A> writes:</DIV> <BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 10px; PADDING-LEFT: = 10px"> <DIV><FONT face=arial,helvetica><FONT size=2>Dear Friends and = Collegues, <BR><BR>Today I installed a set of lifter elbows (yes, old plastic = breaking at a <BR>light touch of the key). The plastic keytops were fairly dirty and = my client <BR>said that her mother told her to clean with rag dabbed with = milk. While <BR>installing the keys, I gave her 2, 1 to clean with milk, and = the other with <BR>water. The water did not do to well, but the milk cleaned = the other key <BR>spotless. <BR><BR>I have never heard about milk for = cleaning anything, let alone piano keys. Is <BR>there something about milk = derivatives that has cleaning agents? Will milk <BR>clean ivory as well? <BR><BR>Yes,= I had my milk today. <BR><BR>Dave Peake, RPT <BR>Portland Chapter <BR>= Oregon City, OR <BR>www.davespianoworks.locality.com <BR></DIV><BR></FONT></FONT> <DIV> </DIV></BLOCKQUOTE></BODY></HTML>