X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 20 Mar 2012 11:23:41 -0400 Message-ID: X-Original-Return-Path: Received: from mail-we0-f180.google.com ([74.125.82.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5449251 for lml@lancaironline.net; Tue, 20 Mar 2012 10:00:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.180; envelope-from=ivdiggs@gmail.com Received: by werf3 with SMTP id f3so50984wer.25 for ; Tue, 20 Mar 2012 06:59:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.180.79.135 with SMTP id j7mr28906347wix.19.1332251978917; Tue, 20 Mar 2012 06:59:38 -0700 (PDT) Received: by 10.216.168.75 with HTTP; Tue, 20 Mar 2012 06:59:38 -0700 (PDT) In-Reply-To: References: X-Original-Date: Tue, 20 Mar 2012 06:59:38 -0700 X-Original-Message-ID: Subject: Re: [LML] Re: Rain, primer, and paint From: Matthew Collier X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=f46d04428ff4f4668804bbad156e --f46d04428ff4f4668804bbad156e Content-Type: text/plain; charset=ISO-8859-1 I agree with Mr. Hogarty. Properly installed static wicks are what you need to save your primer and eventually your paint. We've seen finished painted leading edges blow off in small sections after flying through conditions that produce lots of static without wicks installed. The static build up in the airframe will discharge off the leading edge in flight and take the paint with it. WLS is an excellent product and isn't at fault here. Leading edge tape is a smart thing too, but only a band-aid if you don't address the root cause of the problem. Matthew Collier Fibercraft Inc. On Tue, Mar 20, 2012 at 5:18 AM, William A. Hogarty wrote: > Static wicks, good bonding, and leading edge tape. > > Good luck, Bill Hogarty > > On Mon, Mar 19, 2012 at 3:17 AM, Charles Brown wrote: > >> OK, the guys who already know this can sit back and chuckle, the rest of >> you, here's a bulletin on flying IFR in primer. I gather that WLS primer >> is not as hard as paint and about a half hour in moderate rain at 210ktas >> was enough to visibly erode small areas of all the leading edges. I think >> all that really happened was that defects in the underlying layers, which >> had been filled by WLS, were revealed. At any rate, there were numerous >> small areas (largest: 1/4" X 1/4"; most areas smaller) where pinholes, >> underlying BID mesh, and occasional air bubbles in micro were revealed. >> Recommendation: fly with a harder coating than WLS or avoid rain. The >> WLS held up just fine in ordinary flying for 100 hours. >> >> I've scheduled paint as soon as I can get into the shop, in the meantime >> I'm repairing the leading edges and spraying the repairs with K36 primer >> which the paint shop recommended (and I can get a quart for $80 rather than >> paying $300 for a gallon of WLS). Then, until painting, I'll cover the >> leading edges with leading edge tape. >> >> Question for you IFR guys with APA (Already-Painted Airplanes): What's >> your experience with rain and paint? >> >> Charley Brown >> Legacy #299 100 hours >> -- >> For archives and unsub >> http://mail.lancaironline.net:81/lists/lml/List.html >> > > --f46d04428ff4f4668804bbad156e Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I agree with Mr. Hogarty. Properly installed static wicks are what you need= to save your primer and eventually your paint. We've seen finished pai= nted leading edges blow off in small sections after flying through conditio= ns that produce lots of static without wicks installed. The static build up= in the airframe will discharge off the leading edge in flight and take the= paint with it. WLS is an excellent product and isn't at fault here. Leading edge tape is a smart thing too, but only a band-aid if you don'= t address the root cause of the problem.

Matthew Collier
Fibercra= ft Inc.

On Tue, Mar 20, 2012 at 5:18 AM, = William A. Hogarty <billhogarty@gmail.com> wrote:
Static wicks, good b= onding, and leading edge tape.
=A0
Good luck, Bill Hoga= rty

On Mon, Mar 19, 2012 at 3:17 AM, Charles Brown <browncc1@verizon.net<= /a>> wrote:
OK, the guys who already = know this can sit back and chuckle, the rest of you, here's a bulletin = on flying IFR in primer. =A0I gather that WLS primer is not as hard as pain= t and about a half hour in moderate rain at 210ktas was enough to visibly e= rode small areas of all the leading edges. =A0I think all that really happe= ned was that defects in the underlying layers, which had been filled by WLS= , were revealed. =A0At any rate, there were numerous small areas (largest: = =A01/4" X 1/4"; most areas smaller) where pinholes, underlying BI= D mesh, and occasional air bubbles in micro were revealed. =A0Recommendatio= n: =A0fly with a harder coating than WLS or avoid rain. =A0The WLS held up = just fine in ordinary flying for 100 hours.

I've scheduled paint as soon as I can get into the shop, in the meantim= e I'm repairing the leading edges and spraying the repairs with K36 pri= mer which the paint shop recommended (and I can get a quart for $80 rather = than paying $300 for a gallon of WLS). =A0Then, until painting, I'll co= ver the leading edges with leading edge tape.

Question for you IFR guys with APA (Already-Painted Airplanes): =A0What'= ;s your experience with rain and paint?

Charley Brown
Legacy #299 =A0100 hours
--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/L= ist.html


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