<!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 6.00.2712.300" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Wally</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I use "Saran Wrap" as a release agent = and have never had a problem. It is the standard release agent whenever needed = for  any gluing. I've had trouble with waxed paper under clamping pressure.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Paul Chick</FONT></DIV> <BLOCKQUOTE 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=wilson53@Marshall.edu = href="mailto:wilson53@Marshall.edu">Wilsons</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, January 04, 2002 = 5:28 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Glassing the = block</DIV> <DIV><BR></DIV>One of the first rebuilders I saw do a pinblock used = waxed paper or saran-wrap type stuff.  I think it was waxed = paper.  We let it set overnight and came back the next day to find it released quite nicely.  Have you tried it or had problems with it?  I've = declined so far to use epoxy, but may try it to put on finishing = touches.<BR><BR>Wally Wilson  <BR><BR>At 09:44 AM 1/5/02 +1100, you wrote: <BR> <BLOCKQUOTE cite="" type="cite">Terry, Del and all,<BR> <BLOCKQUOTE> <BLOCKQUOTE cite="" type="cite"> <DL> <DD>----- Original Message -----</DD></DL></BLOCKQUOTE> <DD>From:</B> <A href="mailto:mfarrel2@tampabay.rr.com">Terry Farrell</A></DD></BLOCKQUOTE> <DD>Hello Del. When you wax your plate flange, you must use = some thin, wipe-on type of wax, such that it doesn't fill small depressions = that may be present in the plate flange surface - or is that not really a big = deal? What do you do.<BR><BR></DD></BLOCKQUOTE><FONT size=3> <DL></DL>We grind the plate flanges to remove the small depressions = before applying the release agent, otherwise there is a risk of the epoxy = keying the pinblock to the plate. While this will be less of a problem with = single flanged plates, our pianos have a flange either side of the pin block</FONT><FONT color=#0000ff> (front and rear)</FONT><FONT = color=#000000>. Since we epoxy fit the plank to both flange faces</FONT><FONT = color=#0000ff> (before the plank is fitted to the case - while screwed to the plate)</FONT><FONT color=#000000>, we would run a big risk of gluing = it in for keeps, unless the plate flanges are free of depressions.<BR></FONT> <BLOCKQUOTE> <BLOCKQUOTE cite="" type="cite"> <DL> <DD> How thick do you make your epoxy mixture - peanut butter?</DD></DL></BLOCKQUOTE></BLOCKQUOTE> <BLOCKQUOTE></BLOCKQUOTE><FONT size=3> <DL></DL>We use an Australian made paste-like industrial epoxy which = has similar strength properties to West System (which we use for other = uses such as gluing up our multi-laminated bridge caps).</FONT> <BLOCKQUOTE> <BLOCKQUOTE cite="" type="cite"> <DL> <DD> Also, when you put your epoxy mixture in, what is your = exact procedure in order to avoid having excess epoxy migrate to the = area between the pinblock top and the plate web bottom and thus = impair the fit. Do you screw the pinblock to the plate first and then = mooosh epoxy into any small gaps between the pinblock and flange? Or do you = put a bead of epoxy on the flange edge of the pinblock and draw it = into the flange somehow? Thanks.</DD></DL></BLOCKQUOTE></BLOCKQUOTE> <BLOCKQUOTE></BLOCKQUOTE><FONT color=#000080 size=3> <BLOCKQUOTE cite="" type="cite"> <DL></DL>The wax is standard floor wax.</FONT></BLOCKQUOTE><BR><FONT = color=#000000>Ditto.<BR></FONT><FONT color=#000080> <BLOCKQUOTE cite="" type="cite"> Others use a spray-on mold = release. Either works.<BR></FONT><FONT color=#000000> <BR></FONT><FONT = color=#000080>The consistency is about like peanut = butter.<BR></FONT><FONT color=#000000> <BR></FONT><FONT color=#000080>The pinblock = is shaped for a good wood-to-flange fit first. Then the epoxy matrix is = troweled on to the pinblock (front) surface with a suitable putty knife and the = pinblock is screwed in place. There may be some migration up over the top = because there is inevitably some space between the top of the pinblock and the = bottom of the plate tuning pin panel. Unless, of course, you've done a perfect = fit along the top as well. I've never managed to do that quite. The = excess will clean off. When the epoxy has cured, disassemble the pinblock and = clean it up. Knock off the squeeze-out along the edges, etc. I go over the = whole thing with 60-grit sandpaper lightly to smooth of the roughness from = the casting but not enough to alter the fit.<BR></FONT><FONT color=#000000> <BR></FONT><FONT color=#000080>There are = other procedures that probably work just as well. This is mine. I use the = epoxy matrix to improve an already good pinblock-to-plate fit. Others = simply hack out the block on a bandsaw and use the epoxy matrix to mate the = whole thing. That seems to work as well but I've never been comfortable with the = idea of it.<BR></FONT><FONT color=#000000> <BR></FONT><FONT color=#000080>Del</FONT></BLOCKQUOTE><BR><FONT = color=#000000>This has been my experience too Del. Epoxy should not be used as a fix for a poorly = fitted block, it should be used to make a well fitted block near perfect. If = used in this way, you will never have a problem with the paste type epoxy = running around to the top face of the pin block.<BR><BR>I'm sold on this idea = of epoxy fitting blocks. It really helps tuning = stability.<BR><BR>Regards,<BR><BR>Ron O<BR>-- = <BR>           &nb= sp;     OVERS PIANOS<BR>       Grand Piano = Manufacturers<BR>_____________________________<BR><BR>Web:  &nb= sp; <A href="http://www.overspianos.com.au/" eudora="autourl">http://www.overspianos.com.au</A><BR>Email:  = <A href="mailto:ron@overspianos.com.au" = eudora="autourl">mailto:ron@overspianos.com.au</A><BR>_________________= ____________<BR><BR><BR></FONT><BR></BLOCKQUOTE></BODY></HTML>