Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Mon, 22 Sep 2003 15:08:06 -0400 Message-ID: X-Original-Return-Path: Received: from imo-r04.mx.aol.com ([152.163.225.100] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2589481 for lml@lancaironline.net; Mon, 22 Sep 2003 14:58:29 -0400 Received: from KayLueck@aol.com by imo-r04.mx.aol.com (mail_out_v36_r1.1.) id q.1cd.112c4d0b (25305) for ; Mon, 22 Sep 2003 14:58:14 -0400 (EDT) From: KayLueck@aol.com X-Original-Message-ID: <1cd.112c4d0b.2ca0a046@aol.com> X-Original-Date: Mon, 22 Sep 2003 14:58:14 EDT Subject: Bonding aluminum X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1064257094" X-Mailer: 9.0 for Windows sub 920 -------------------------------1064257094 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Back in the early 80's I had the pleasure of working with some folks who worked on the Windecker Eagle , the first FAA certified all composite aircraft . They used the following technique for bonding fiberglass to aluminum : First , clean the aluminum with a solution of 50/50 MEK and the epoxy with which you are going to use in your laminate . Second, wet sand the aluminum surface to be bonded using the same solution and 80# wet -dry paper . Third , wash the residue off with clean MEK epoxy solution. Fourth , wash MEK off with pure epoxy . Finally , proceed with lay up as needed. A few notes : Use properly activated resin for all phases , never allow surfaces to dry (be exposed to air ) , when the wet solution " sheets out " and does not bead up you have a clean surface ,we have tried this with several resin systems and it works quite well. Rob Lueck Top Flight Services -------------------------------1064257094 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Back in the early 80's I had the pleasure of working with some folks wh= o worked on the Windecker Eagle , the first FAA certified all composite airc= raft . They used the following technique for bonding fiberglass to aluminum=20= :
First , clean the aluminum with a solution of 50/50 MEK and the epoxy w= ith which you are going to use in your laminate .
Second, wet sand the aluminum surface to be bonded using the same solut= ion and 80# wet -dry paper .
Third , wash the residue off with clean MEK epoxy solution.
Fourth , wash MEK off with pure epoxy .
Finally , proceed with lay up as needed.
 A few notes : Use properly activated resin for all phases , never= allow surfaces to dry (be exposed to air ) , when the wet solution " sheets= out " and does not bead up you have a clean surface ,we have tried this wit= h several resin systems and it works quite well.
Rob Lueck
Top Flight Services
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