<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi Ken,<DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>Lacquer thinner will do just fine. As it happened, when I read your post I was in a practice room with a Yamaha G-2 with a nice white paint smear on the lid. Wouldn't budge when I tried removing with fingernail. So I experimented for you. After using the lacquer thinner, it looked fine compared to the rest of the piano. I then used a bit of Flitz and polished. Now it looks better than the rest of the piano (like new - the rest is scratched and dirty comparatively). But bottom line: lacquer thinner won't touch polyester, and it will remove just any wall paint, whether scraped on or actually applied wet (as in paint drips from not covering the piano.<BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><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><BR class="Apple-interchange-newline"></SPAN></SPAN> </DIV><BR><DIV><DIV>On Jan 16, 2007, at 1:14 PM, Ken Zahringer wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"> <FONT face="Garamond"><SPAN style="font-size:14.0px">We have a Yamaha C3 (black polyester) here that has been in a practice room for several years, and was just moved to a classroom. There are some spots/streaks of white paint on the edge of the lid, from the wall of the PR. I have no idea how long it has been there. It looks like it happened the last time the PR was painted; I don’t think it is from being jammed up against the wall. Scraping the paint with my fingernail had no effect whatsoever. Since the piano is now in a classroom, where everybody can see the paint spots, the boss wants it cleaned up. I know poly is pretty inert, but I didn’t want to just start trying solvents. Anybody have any experience with this? What will remove paint but leave poly alone?<BR> <BR> Thanks,<BR> Ken Z.<BR> -- <BR> Ken Zahringer, RPT<BR> Piano Technician<BR> MU School of Music<BR> 297 Fine Arts<BR> 882-1202<BR> cell 489-7529<BR> </SPAN></FONT> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>