<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV><DIV>On Jun 12, 2007, at 9:34 AM, Ron Nossaman wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">I've been using epoxy in original bridge caps for 30 years, and CA on occasion for over 10. It certainly improves tone quality and minimizes false beating, and does seem to narrow pitch swings with seasonal changes. I've done testing with bridge models of various types, and epoxy or CA saturation of at least the cap does improve dimensional stability with humidity shifts.</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" style="font: 12.0px Helvetica">Ron N</FONT></P> </BLOCKQUOTE></DIV>Hi Ron,<BR><DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>When you say epoxy or CA saturation, what do you mean in terms of method used to saturate? Are these methods one could use on an existing bridge in a piano?</DIV><DIV><BR><DIV><DIV>Regards,</DIV><DIV>Fred Sturm</DIV><DIV>University of New Mexico</DIV><DIV><A href="mailto:fssturm@unm.edu">fssturm@unm.edu</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV></DIV><BR><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV></BODY></HTML>