Return-Path: Received: from tvainet.tva.gov ([152.85.133.14]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with SMTP id com for ; Thu, 24 Jun 1999 16:20:25 -0400 Received: from topaz-hme.cha.tva.gov by tvainet.tva.gov via smtpd (for olsusa.com [205.245.9.2]) with SMTP; 24 Jun 1999 20:22:34 UT Received: from chachaois2b.cha.tva.gov (chachaois2b.cha.tva.gov [152.85.66.29]) by topaz.cha.tva.gov (8.8.6/8.7.3/8.7.5-topaz) with ESMTP id QAA19957 for ; Thu, 24 Jun 1999 16:23:18 -0400 (EDT) Received: by chachaois2b.cha.tva.gov with Internet Mail Service (5.5.2448.0) id ; Thu, 24 Jun 1999 16:23:23 -0400 Message-ID: From: "Seay, E. A." To: "'Lancair Users Group'" Subject: RE: Preparing for bonding Date: Thu, 24 Jun 1999 16:23:19 -0400 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Ok finally had to get my $0.02 in. Roughing up the surface does in fact INCREASE surface area. The higher the peaks and valleys the more the surface area, hence the courser the sandpaper, the rougher the surface, thus the more the surface area. Think of it this way, would you rather mow the grass on a flat meadow or one with a lot of mountains with the same outside dimensions? Thats surface area. What does happen when one uses finner sandpaper is to reduce the mean distance between the two surfaces. Cyanoacrylate glues love close surfaces, they don't fill the gaps very well. Fillers are added to them such as micro ballons etc. to fill the gaps. Maybe epoxies act somewhat like cyanoacrylates in that they aren't as strong when they must fill large gaps. Anybody got input on that? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html