Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 26 Nov 2002 11:30:32 -0500 Message-ID: X-Original-Return-Path: Received: from imo-r07.mx.aol.com ([152.163.225.103] verified) by logan.com (CommuniGate Pro SMTP 4.0.1) with ESMTP id 1887423 for lml@lancaironline.net; Tue, 26 Nov 2002 11:29:34 -0500 Received: from Sky2high@aol.com by imo-r07.mx.aol.com (mail_out_v34.13.) id q.f6.24d49626 (3964) for ; Tue, 26 Nov 2002 11:29:28 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Tue, 26 Nov 2002 11:29:28 EST Subject: Re: [LML] Re: Body Work X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_f6.24d49626.2b14fb68_boundary" X-Mailer: AOL 8.0 for Windows US sub 75 --part1_f6.24d49626.2b14fb68_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 11/22/2002 11:47:57 AM Central Standard Time, garyhall@ix.netcom.com writes: > My question is how did you measure this "shrinkage"? Just how > much did it shrink? Lastly, are you sure (for my edification) > you used epoxy and not some polyester? > > Gary, As I built my 320, some parts were primed with WLS 2-part epoxy primer when the fuselage was upside down for the last time - 4 years before it flew. Once completed, the rest was primed a year before , it flew. Each time a major priming sequence was done, fresh primer was used and then the airplane was flown in primer for a year and a half. I know I spent at least 1/3 of my build time sanding, the primer was applied 3 times and wet-sanded (by-hand and long boards) after each application. The airplane was painted and clear-coated by an experienced automotive/show-car painter and is beautiful in the sun. In the hangar's cruel florescent light, the fabric weave can be seen clearly anywhere not filled by micro or not gel-coated. Perhaps another coat of primer just before painting would have hidden the weave, perhaps. A friend, who plans-built a Cozy, prepared his airplane by using a micro-slurry (very wet) squeegeed on before priming. Later sanded, primed and painted (by the same painter I used), there is no evidence of fabric weave and he has been flying it for years. I am using this procedure (slurry) now. We report, you decide. Scott Krueger N92EX --part1_f6.24d49626.2b14fb68_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 11/22/2002 11:47:57 AM Central Standard Time, garyhall@ix.netcom.com writes:

My question is how did you measure this "shrinkage"? Just how
much did it shrink? Lastly, are you sure (for my edification)
you used epoxy and not some polyester?



Gary,

As I built my 320, some parts were primed with WLS 2-part epoxy primer when the fuselage was upside down for the last time - 4 years before it flew.  Once completed, the rest was primed a year before , it flew.  Each time a major priming sequence was done, fresh primer was used and then the airplane was flown in primer for a year and a half.  I know I spent at least 1/3 of my build time sanding, the primer was applied 3 times and wet-sanded (by-hand and long boards) after each application.  The airplane was painted and clear-coated by an experienced automotive/show-car painter and is beautiful in the sun.  In the hangar's cruel florescent light, the fabric weave can be seen clearly anywhere not filled by micro or not gel-coated.  Perhaps another coat of primer just before painting would have hidden the weave, perhaps. 

A friend, who plans-built a Cozy, prepared his airplane by using a micro-slurry (very wet) squeegeed on before priming.  Later sanded, primed and painted (by the same painter I used), there is no evidence of fabric weave and he has been flying it for years.

I am using this procedure (slurry) now.

We report, you decide.

Scott Krueger
N92EX
 --part1_f6.24d49626.2b14fb68_boundary--