<!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 6.00.2900.3157" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: x-small; COLOR: black; FONT-FAMILY: Arial; BACKGROUND-COLOR: transparent" bgColor=#ffffff> <DIV>A modified two-part urea-formaldehyde adhesive. The two parts are a liquid resin and a powdered hardener - so it cures like epoxy, it does not dry like wood glue. I could have used Titebond, but my fear of warping during the drying process is one reason I haven't used it. I think maybe Ron Nossaman builds his laminated bridge roots with Titebond - but I'm not sure. Ron?</DIV> <DIV> </DIV> <DIV>I think most manufacturers use an adhesive similar to what I am using.</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">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"> </DIV> <DIV>I don't know. That's why I asked. What kind of glue are you using? </DIV> <DIV> </DIV> <DIV>Paul</DIV> <DIV>In a message dated 09/05/07 17:39:35 Central Daylight Time, <A href="mailto:mfarrel2@tampabay.rr.com">mfarrel2@tampabay.rr.com</A> writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV> <STYLE type=text/css>.aolmailheader { FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: Arial } A.aolmailheader:link { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:visited { FONT-WEIGHT: normal; COLOR: magenta; TEXT-DECORATION: underline } A.aolmailheader:active { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:hover { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } </STYLE> <META content="MSHTML 6.00.2900.3157" name=GENERATOR> <DIV>How would a little adhesive soaking into the wood affect anything?</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">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=mailto:paulrevenkojones@aol.com href="mailto:paulrevenkojones@aol.com" alt="mailto:paulrevenkojones@aol.com">PAULREVENKOJONES</A> </DIV> <DIV style="FONT: 10pt arial"> </DIV> <DIV>Glue absorption?</DIV> <DIV> </DIV> <DIV>Paul</DIV> <DIV> </DIV> <DIV> <DIV><STRONG>"If you want to know the truth, stop having opinions" (Chinese fortune cookie)</STRONG></DIV></DIV> <DIV> </DIV> <DIV> </DIV> <DIV>In a message dated 09/05/07 12:51:41 Central Daylight Time, <A title=mailto:mfarrel2@tampabay.rr.com href="mailto:mfarrel2@tampabay.rr.com" alt="mailto:mfarrel2@tampabay.rr.com">mfarrel2@tampabay.rr.com</A> writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV> <STYLE type=text/css>.aolmailheader { FONT-SIZE: 8pt; COLOR: black; FONT-FAMILY: Arial } A.aolmailheader:link { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:visited { FONT-WEIGHT: normal; COLOR: magenta; TEXT-DECORATION: underline } A.aolmailheader:active { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } A.aolmailheader:hover { FONT-WEIGHT: normal; COLOR: blue; TEXT-DECORATION: underline } </STYLE> <META content="MSHTML 6.00.2900.3157" name=GENERATOR> <STYLE></STYLE> <DIV><FONT face=Tahoma>Question for those who are in the habit of laminating up new bridge roots - or maybe even those who don't, but might have some thoughts to share. I just completed building a bridge root for a customer that came out very nicely, but the overall curve of the bridge is off by a couple millimeters or so, much like other ones I have built in the past. I really don't understand that. </FONT></DIV> <DIV><FONT face=Tahoma></FONT> </DIV> <DIV><FONT face=Tahoma>One would think of the possibility of some small spring-back effect (but with 18 laminations?), but the curve error is always toward a tighter curve. How can that be? </FONT></DIV> <DIV><FONT face=Tahoma></FONT> </DIV> <DIV><FONT face=Tahoma>I don't think it is a significant issue as you can easily correct the bend with your pinky - but still, how does this happen?</FONT></DIV></DIV></BLOCKQUOTE></BLOCKQUOTE></DIV></BLOCKQUOTE> <DIV> </DIV></BLOCKQUOTE></BODY></HTML>