X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 14 Aug 2013 07:51:51 -0400 Message-ID: X-Original-Return-Path: Received: from mail-qa0-f49.google.com ([209.85.216.49] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6417339 for lml@lancaironline.net; Wed, 14 Aug 2013 06:51:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.49; envelope-from=mikebaud@gmail.com Received: by mail-qa0-f49.google.com with SMTP id cr7so945919qab.1 for ; Wed, 14 Aug 2013 03:51:00 -0700 (PDT) X-Received: by 10.49.116.70 with SMTP id ju6mr10278179qeb.40.1376477460758; Wed, 14 Aug 2013 03:51:00 -0700 (PDT) X-Original-Return-Path: Received: from ?IPv6:2600:1006:b124:8f99:3499:e1d8:8e4d:7e5f? ([2600:1006:b124:8f99:3499:e1d8:8e4d:7e5f]) by mx.google.com with ESMTPSA id i4sm14106938qev.8.2013.08.14.03.50.58 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 14 Aug 2013 03:51:00 -0700 (PDT) Subject: Wing closing epoxy From: Mike Baudhuin Content-Type: multipart/alternative; boundary=Apple-Mail-2EF3133A-FA45-4D78-9EF0-027343AE30DA X-Mailer: iPad Mail (10B329) X-Original-Message-Id: X-Original-Date: Wed, 14 Aug 2013 06:50:55 -0400 X-Original-To: lml@lancaironline.net Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-2EF3133A-FA45-4D78-9EF0-027343AE30DA Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I am preparing to close a set of wings and have some questions about Hysol e= poxy. I've reviewed previous posts and there hasn't been much said for awhi= le, perhaps because wings are coming from factory closed now. I went to Aircraft Spruce and said "I need six quarts of Hysol." They sold m= e six quarts of Hysol. I used it to epoxy in a fuel drain and probe and was= asked by Matthew Colliers why it wasn't blue. So, I looked closer at my ma= nuals and saw that it calls for epoxy and flox if temperatures are below 70 d= egrees and Hysol 9339 if temperatures are above 70 degrees. I then went to t= he Lancair website and found they don't even carry Hysol 9339, but have chan= ged to Hysol 9360. The product Aircraft Spruce sells is Hysol 9430. Lancai= r tech support says they don't know why 9360 is specified. "That was select= ed by the guy before me." Aircraft Spruce says -=20 "This new and improved Hysol glue replaces the old EA-9410-2 glue. EA-9430 h= as the same characteristics as the EA-9410, but has a 50 minute pot life ins= tead of the 30 minute pot life of the EA-9410 at 77=C2=B0F. Used extensively= in the Strojnik S2A sailplane and many other homebuilts." Locktite tech support and the data sheets show the pot life, tensile and she= ar strenght to be almost identical. The one difference I can find is that t= he 9360 specifies shear at different temperatures while 9430 specifies the s= hear strenght only at 77 degrees. The guy from Locktite couldn't explain th= e differences, and said "they appear to be very similar products". Can anyo= ne tell me what makes the 9360 product better suited for Lancair wings? Is t= here a reason not to use the six quarts of 9430 in my fridge? Mike Baudhuin= --Apple-Mail-2EF3133A-FA45-4D78-9EF0-027343AE30DA Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

I am preparing to close a= set of wings and have some questions about Hysol epoxy. I've reviewed= previous posts and there hasn't been much said for awhile, perhaps because w= ings are coming from factory closed now.

I went to Aircraft Spruce and said "I need s= ix quarts of Hysol." They sold me six quarts of Hysol. I used it= to epoxy in a fuel drain and probe and was asked by Matthew Colliers why it= wasn't blue. So, I looked closer at my manuals and saw that it calls f= or epoxy and flox if temperatures are below 70 degrees and Hysol 9339 if tem= peratures are above 70 degrees. I then went to the Lancair website and= found they don't even carry Hysol 9339, but have changed to Hysol 9360. &nb= sp;The product Aircraft Spruce sells is Hysol 9430. Lancair tech suppo= rt says they don't know why 9360 is specified. "That was selected by t= he guy before me."

Aircraft Spruce says -

"This new and improved Hysol glue replaces the old EA= -9410-2 glue. EA-9430 has the same characteristics as the EA-9410, but has a= 50 minute pot life instead of the 30 minute pot life of the EA-9410 at 77=C2= =B0F. Used extensively in the Strojnik S2A sailplane and many other homebuil= ts."

Locktite tech support and the data sheets show the pot life, ten= sile and shear strenght to be almost identical. The one difference I c= an find is that the 9360 specifies shear at different temperatures while 943= 0 specifies the shear strenght only at 77 degrees. The guy from Lockti= te couldn't explain the differences, and said "they appear to be very simila= r products". Can anyone tell me what makes the 9360 product better sui= ted for Lancair wings? Is there a reason not to use the six quarts of 9= 430 in my fridge?

Mike Baudhuin= --Apple-Mail-2EF3133A-FA45-4D78-9EF0-027343AE30DA--