<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Message</TITLE> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1170" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2>What kind of "typical abrasives" do you use on = plastic keys?</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>I've cleaned some errant spots of stain from my = naturals using 0000 steel wool, and I'm now experimenting with various abrasives to = remove the scratches I caused.  I've been successful using a sanding block = with 1500 grit emery cloth, followed by a buffing wheel with Dico's E5 emery = compound for ferrous metals, and then buffing with "Zam" to put the gloss = back.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>I'm being careful not to cause more problems then = I'm solving (having learned from the steel wool!), but none of these abrasives cut = as much as I would have expected on plastic.  I only have to do about ten = keys, thank goodness...</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>I'd be happy to hear what others have = used.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>--Cy Shuster--</FONT></DIV> <DIV><FONT size=2>Rochester, MN</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=jgrassi@silverlink.net = href="mailto:jgrassi@silverlink.net">Jeannie Grassi</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=diskladame@provide.net href="mailto:diskladame@provide.net">'Z! Reinhardt'</A> ; <A title=pianotech@ptg.org = href="mailto:pianotech@ptg.org">'Pianotech'</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, August 11, 2003 = 11:06 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Ivoritis = Elsewhere?</DIV> <DIV><BR></DIV> <DIV><SPAN class=510010116-11082003><FONT face=Arial>Hi Zen,</FONT></SPAN></DIV> <DIV><SPAN class=510010116-11082003><FONT face=Arial>I encountered = a Kawai with graying, discolored white keys.  It turned out that the = stain on the sharps was coming off on the fingers and then getting spread to the = white keys.  I replaced the black keys and I was able to buff the white = keys so that they looked as good as new.  However, that involved the = typical abrasives used with a buffing wheel.</FONT></SPAN></DIV> <DIV><SPAN class=510010116-11082003><FONT face=Arial></FONT></SPAN> </DIV> <DIV><SPAN class=510010116-11082003><FONT face=Arial>Hope this helps,</FONT></SPAN></DIV> <DIV><SPAN class=510010116-11082003><FONT face=Arial>jeannie</FONT></SPAN></DIV> <P><FONT size=2>Jeannie Grassi, RPT<BR>Associate Editor, Piano = Technicians Journal<BR><A = href="mailto:jgrassi@silverlink.net">mailto:jgrassi@silverlink.net</A> = </FONT></P> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV></DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr = align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <B>On = Behalf Of </B>Z! Reinhardt<BR><B>Sent:</B> Friday, August 08, 2003 3:30 PM<BR><B>To:</B> Pianotech<BR><B>Subject:</B> Ivoritis Elsewhere?<BR><BR></FONT></DIV> <DIV><FONT face=Arial size=2>Friends:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Has anyone else come to a case of = ivoritis on a non-Yamaha piano?  Classic signs -- white keys turning greyish, = but it doesn't feel sticky the way most grunges would.  Non-abrasives = will not remove the stuff.  The piano in question is a Boston = 218 (pretty big).</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Any brilliant ideas?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Thanks in advance --</FONT></DIV> <DIV><FONT face=Arial size=2>Z! Reinhardt  RPT<BR>Ann = Arbor  MI<BR></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>