<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:st1 = = "urn:schemas-microsoft-com:office:smarttags"><HEAD> <META http-equiv=Content-Type content="text/html; charset=UTF-8"> <META content="MSHTML 6.00.2900.2627" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; = FONT-FAMILY: Arial" bottomMargin=7 bgColor=#ffffff leftMargin=7 topMargin=7 = rightMargin=7> <DIV>Dale,</DIV> <DIV> </DIV> <DIV>Go to <A = href="http://westsystem.com/">http://westsystem.com/</A><A href="http://www.westsystem.com"></A> and click on "Product = Information". Scroll about half-way down and click on "Filler Buying Guide" - it details how = much of the various fillers is needed to achieve catsup, mayonnaise, and peanut = butter consistencies. Often, in situations like filling a rib notch where = strength is simply not a concern, I will use #407 Low-Density filler (microballons) because it is so incredibly easy to sand.</DIV> <DIV> </DIV> <DIV>When using epoxy to bond things that require a high strength bond = (like a wooden rim brace, fish or cut-off bar), I almost always use #404 = High-Density filler. Mmmmm heap strong stuff!</DIV> <DIV> </DIV> <DIV>Another West System filler that I always keep on my shelf is #403 Microfibers. I always use that for laminating structural elements such = as laminated cut-off bars, bridge roots and caps, and pinblocks.</DIV> <DIV> </DIV> <DIV>On the West System website, right next to where you can click on = "Filler Buying Guide" is "Filler Selection Guide" - that outlines the most = common recommended uses and properties of the various fillers.</DIV> <DIV> </DIV> <DIV>I don't really use the colloidal silica because there are other = better fillers for situations I run across and because it is more difficult to = mix into the resin than other fillers.</DIV> <DIV> </DIV> <DIV>Terry Farrell</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"><FONT id=role_document face=Arial = color=#000000 size=2>   David</DIV> <DIV> <DIV>    I've been using the west systems fairing = filler which is a decent color but it still quite fluid even if I add a fair amount = so assume adding  C.S. turns the consistency to something like = play dough? How does it effect strength? Not that matters much in this application</DIV> <DIV>  Dale</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px = solid"><FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000080 = size=2> <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Mix the = epoxy with colloidal silica, in addition to your other filler of choice = (available from West System).<SPAN style="mso-spacerun: yes">  </SPAN>You can = make the epoxy as thick as you want it and it will stay in the notches = without tape.<SPAN style="mso-spacerun: yes">  </SPAN>Over fill = slightly and sand it flat.<SPAN style="mso-spacerun: yes">  = </SPAN>It’s good stuff to use for fitting pinblocks as well.<SPAN style="mso-spacerun: = yes">  </SPAN><SPAN style="mso-spacerun: = yes"> </SPAN><o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: = Arial"><o:p> </o:p></SPAN></FONT><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: yes">David Love<BR></SPAN></FONT><st1:PersonName><FONT color=navy = size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: = yes">davidlovepianos@comcast.net</SPAN></FONT></st1:PersonName><FONT color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; mso-no-proof: yes"> </SPAN></FONT></P></FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV> </DIV></BLOCKQUOTE></FONT></BODY></HTML>