X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 18 Apr 2011 21:56:21 -0400 Message-ID: X-Original-Return-Path: Received: from fed1rmfepo102.cox.net ([68.230.241.144] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4949886 for lml@lancaironline.net; Mon, 18 Apr 2011 12:27:49 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.144; envelope-from=gebuchanan@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmfepo102.cox.net (InterMail vM.8.01.04.00 201-2260-137-20101110) with ESMTP id <20110418162704.KTAH18463.fed1rmfepo102.cox.net@fed1rmimpo01.cox.net> for ; Mon, 18 Apr 2011 12:27:04 -0400 Received: from [127.0.0.1] ([72.197.228.81]) by fed1rmimpo01.cox.net with bizsmtp id Z4Ss1g00h1m0s08034Ss5u; Mon, 18 Apr 2011 12:26:53 -0400 X-CT-Score: NA X-Authority-Analysis: v=1.1 cv=qIIqMNu0S/sqyG+h89WN7GOWbLwvmXps6ljS8trnEMw= c=1 sm=1 a=RAWo0jPMFMcA:10 a=G8Uczd0VNMoA:10 a=0sLDPkGTVImxDBY0c9cAeQ==:17 a=emz3JgUTCgAgQo0IlN4A:9 a=wPNLvfGTeEIA:10 a=4PR2P7QzAAAA:8 a=8_nDpiF-vtA1ZNSS9FQA:9 a=b_vWQh-YvROclC78BQoA:7 a=djSSOgbfo6cA:10 a=0sLDPkGTVImxDBY0c9cAeQ==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none X-Original-Message-ID: <4DAC664A.1070102@cox.net> X-Original-Date: Mon, 18 Apr 2011 09:26:50 -0700 From: Guy Buchanan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.9) Gecko/20100722 Eudora/3.0.4 MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] Re: Alodine + Hysol References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------000402070102010809050508" This is a multi-part message in MIME format. --------------000402070102010809050508 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 4/18/2011 9:09 AM, Dan Schaefer wrote: > As far as bonding to any epoxy, I'd bet that hard anodize would > provide as good or better a surface as bare Al or alodine. Regardless > of the surface treatment, the shear strength of the bond will far > exceed the peel strength, so one needs to assess the application. Foggy memory time: (Meaning, it's been a while.) Anodizing /can /provide an excellent bonding surface but you MUST specify that you are using it for bonding so that the anodizer doesn't seal the surface. They seal it by immersing it in water. If left unsealed they should return the part in a container with dessicant keeping moisture from the part. This also means that you should be ready to bond the part immediately after anodizing because the part is immensely hygroscopic and will self seal in days if left open and eventually even if sealed in a bag. Guy Buchanan Ramona, CA Kitfox IV-1200 / 592-C / Warp 3cs / 500 hrs. and grounded --------------000402070102010809050508 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit On 4/18/2011 9:09 AM, Dan Schaefer wrote:

As far as bonding to any epoxy, I'd bet that hard anodize would provide as good or better a surface as bare Al or alodine. Regardless of the surface treatment, the shear strength of the bond will far exceed the peel strength, so one needs to assess the application.

Foggy memory time: (Meaning, it's been a while.) Anodizing can provide an excellent bonding surface but you MUST specify that you are using it for bonding so that the anodizer doesn't seal the surface. They seal it by immersing it in water. If left unsealed they should return the part in a container with dessicant keeping moisture from the part. This also means that you should be ready to bond the part immediately after anodizing because the part is immensely hygroscopic and will self seal in days if left open and eventually even if sealed in a bag.

Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 592-C / Warp 3cs / 500 hrs. and grounded

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