Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Thu, 08 Jul 2004 19:04:04 -0400 Message-ID: X-Original-Return-Path: Received: from sccrmhc12.comcast.net ([204.127.202.56] verified) by logan.com (CommuniGate Pro SMTP 4.2b7) with ESMTP id 251183 for lml@lancaironline.net; Thu, 08 Jul 2004 17:53:40 -0400 Received: from steve (c-67-166-133-229.client.comcast.net[67.166.133.229]) by comcast.net (sccrmhc12) with SMTP id <2004070821531001200t8bfje>; Thu, 8 Jul 2004 21:53:11 +0000 From: "the colwells" X-Original-To: "'Lancair Mailing List'" X-Original-Cc: Subject: high surface energy X-Original-Date: Thu, 8 Jul 2004 14:55:33 -0700 X-Original-Message-ID: <02dc01c46536$4b6dc160$e585a643@steve> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_02DD_01C464FB.9F0EE960" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_02DD_01C464FB.9F0EE960 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dan, I know you are in the composite business and can shed some light on this. I have seen the term "high surface energy" applied in reference to surface prep prior to wet bonding. I understand this increases the strength of the bond and is obtained by cleaning the part or parts and sanding. a . Does it make any difference if 40 or 80 grit or Scotchbrite is used? b . Is time between sanding and bonding a factor? c. Does a final cleaning the parts with Acetone, Methylene Chloride or water reduce the surface energy? d. Would final cleaning of parts with Vacuum have an effect? Steve Colwell Legacy ------=_NextPart_000_02DD_01C464FB.9F0EE960 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
 
Dan,
 
I know you are in the composite business = and can shed=20 some light on this.
 
I have seen the term "high surface energy" = applied in=20 reference to surface prep prior to wet bonding.  I understand = this=20 increases the strength of the bond and is obtained by cleaning the = part or=20 parts and sanding.
a . Does=20 it make any difference if 40 or 80 grit or Scotchbrite is = used?
b . Is time between sanding and bonding = a=20 factor?
c.  Does a final cleaning the parts = with=20 Acetone, Methylene Chloride or water reduce the surface=20 energy?
d.  Would final = cleaning  of parts with Vacuum have an=20 effect?
 
Steve Colwell  =20 Legacy  
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