<!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 6.00.2900.2604" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Lucky Pierre!  No, it's so that = all the top layers of the block are fully impregnated with the epoxy.  This = will restore the integrity of the block.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>An even better but impractical = procedure would be to put the block in a vacuum chamber and slowly evacuate the air (it = will bubble profusely) drawing all the air out of all the nooks and crannys (what's = a cranny?) Then when the atmospheric</FONT> <FONT face=Arial = size=2>pressure is restored the pressure will force the epoxy into all those small crannys.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Epoxy used for optical purposes must be = "outgassed" in a vacum chamber to make it suitable for use where any bubbles would = be catastophic.  Vacuum impregnation is the process of completly = sealing a substance.  Hey! Maybe we should inpregnate all soundboard = wood.  Oh! God!  I don't want to start another soundboard thread.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Carl Meyer PTG assoc<BR>Santa Clara, Ca.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial 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=pierre.gevaert@belgacom.net href="mailto:pierre.gevaert@belgacom.net">Gevaert Pierre</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, February 22, = 2005 2:26 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Glue pinblock = plugs</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hi,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Thanks for the input.</FONT></DIV> <DIV><FONT face=Arial size=2>If I understand you fill the holes = with epoxy completely to the top of the pin block? I suppose this is for making = the new holes easyer to drill.</FONT></DIV> <DIV><FONT face=Arial size=2>As it is an open face pinblock in = this case I suppose it is easyer to fix than with a covered pinblock?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Pierre Gevaert</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=cmpiano@comcast.net = href="mailto:cmpiano@comcast.net">Carl Meyer</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 21, = 2005 11:02 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Glue pinblock = plugs</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>I'd first seal the bottom of the = block with wax paper, 1 inch foam and a particle board panel.  Use paste epoxy = around the edges or it will leak.  Now warm the block (warm to the = touch) to further encourage capillary action.  Fill all tuning pin holes = with thin epoxy. Refill as needed. Epotek 301 is the thinnest = I've found, but there are others.  Let cure for about 2 days and = drill for plugs.  I'm not sure it matters much what glue you use for the plugs.  I've used titebond.  You may need to go to metric = to get the best fit for the plugs, either 3/8 or 1/2.  Half inch may = overlap making it a two step process.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>One time I drilled right thru the = plate with a 3/8 drill and let the plugs be level with the top of the = plate.  For cosmetics I used a bushing cloth punching over the tuning pin.  = This piano already had the plate installed and I didn't want to take it = out again.  I've done this a few times and haven't had any problems.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Carl Meyer PTG assoc<BR>Santa = Clara, Ca.</FONT></DIV> <DIV><FONT face=Arial 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=pierre.gevaert@belgacom.net href="mailto:pierre.gevaert@belgacom.net">Gevaert Pierre</A> = </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 21, = 2005 12:57 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Glue pinblock = plugs</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hi list,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I checked the Pianotech archives = trying to find out what's the best way to glue laminated pinblock plugs in a = cracked pinblock but I could'n't find out.</FONT></DIV> <DIV><FONT face=Arial size=2>Is epoxying  the best way to = fix these plugs ore are there better glues?</FONT></DIV> <DIV><FONT face=Arial size=2>Thanks for some = advice.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Pierre</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY= ></HTML>