X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 05 Apr 2012 10:21:53 -0400 Message-ID: X-Original-Return-Path: Received: from mail.mywebsitepanel.net ([173.236.55.45] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5469590 for lml@lancaironline.net; Thu, 05 Apr 2012 09:40:38 -0400 Received-SPF: pass receiver=logan.com; client-ip=173.236.55.45; envelope-from=sales@NewmanAviation.com Received: by mail.mymailaccess.net via HTTP; Thu, 5 Apr 2012 09:39:49 -0400 From: "sales@NewmanAviation.com" X-Original-To: Subject: RE: Window Bonding X-Original-Date: Thu, 5 Apr 2012 09:39:49 -0400 Reply-To: sales@NewmanAviation.com X-Original-Message-ID: <6cefaf1f$2dca6c2d$723f8491$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_3183A6AC.2EDA65D" X-Originating-IP: [98.23.85.113] This is a multipart message in MIME format. ------=_NextPart_000_0001_3183A6AC.2EDA65D Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Who is the supplier of Lancair windows and are the windows Acrylic (Plexiglass) or Polycarbonate (Lexan)? Pete (Lancair IV "slow build" builder) -----Original Message----- From: Tom Wallace [mailto:tlwcfii@yahoo.com] Sent: Wednesday, April 04, 2012 4:08 PM To: lml@lancaironline.net Subject: RE: Window Bonding Thank you to all that have responded on this subject and the assistance I have received in solving this issue. In Summary I have found that the Hysol 9360 bond to the Acryic window is inadequate IMHO. I have devised a method to use Hysol 9360 bonded to the fuselage in the Window bond area and then use WeldOn45 to bond the acrylic window to the Hysol. I have a detailed document that describes the test I performed on the bonds before selecting this method and the process I used to install the windows. I don't profess to be an "expert" builder but would be more than happy to share my findings with anyone that is interested. George Mesiarik of LP Aero Plastics, Inc. was very helpful in providing information that led me to this process. Please e mail me directly if you are interested in the details and I will send you the document mentioned above. Blue Skies, Tom -----Original Message----- From: Tom [mailto:Tom@wellswoodturning.com] Sent: Sunday, November 20, 2011 9:48 AM To: lml@lancaironline.net Subject: Window Bonding I installed two windows in my ES with Hysol 9394. I followed the instructions explicitly and after cure (14 days)there were no air gaps or voids in the bond area. As I was removing the clamps after cure that held the window in place I noticed small areas near where I pushed on the fasteners debonded. By pushing on the fiberglass around the window from the inside I could see the Hysol debond from the plexi glass. I ended up removing both windows by debonding them using this method. I had been using Hysol 9394 as that at one point in time was the Hysol being sold by Lancair. After reviewing the spec sheets of Hysol 9360 vs 9394 the major difference noted was the peel strength of the 9394 (5 Lb/in) vs the 9360 (50 Lb/in) per the data sheets. I did a crude test using 9394 and 9360 bonding a piece of prexiglass to a piece of fiberglass and allowing it to cure for 14 days. I found that the plexiglass could be removed from both simply by flexing the fiberglass although the 9360 seemed to be slightly better bond. So...before I bond these windows in again I would like to be sure of what to use. Has anyone else experienced this phenomenon? The supplier of the Lancair windows uses MIL-S-8802 to bond windows to aluminum and indicated they thought some builders had used it to bond windows to fiberglass. They also indicated they used Weld-on 40 to bond fiberglass to the edge of the windows with good results. Any insight on this would be greatly appreciated. Blue Skies, Tom ------=_NextPart_000_0001_3183A6AC.2EDA65D Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Who is the supplier of Lancair windows and are the wind= ows Acrylic (Plexiglass) or Polycarbonate (Lexan)? 

Pete  (Lancair IV "slow build" builder) 

 

 

-----Original Message-----
From: Tom Wallace [mailto:tlwcfii@yahoo.com]
Sent: Wednesday, April 04, 2012 4:08 PM
To: lml@lancaironline.net
Subject: RE: Window Bonding

 

Thank you to all that have respon= ded on this subject and the assistance I have received in solving this issu= e.

 

In Summary I have found that the = Hysol 9360 bond to the Acryic window is

inadequate IMHO.   I ha= ve devised a method to use Hysol 9360 bonded to the

fuselage in the Window bond area = and then use WeldOn45 to bond the acrylic window to the Hysol.  I have= a detailed document that describes the test I performed on the bonds befor= e selecting this method and the process I used to install the windows.

 

I don't profess to be an "expert"= builder but would be more than happy to share my findings with anyone that= is interested.  George Mesiarik of LP Aero Plastics, Inc. was very he= lpful in providing information that led me to this process.

 

Please e mail me directly if you = are interested in the details and I will send you the document mentioned ab= ove.

 

Blue Skies,

 

Tom

 

-----Original Message-----=

From: Tom [mailto:Tom@wellswo= odturning.com]

Sent: Sunday, November 20, 2011 9= :48 AM

To: lml@lancaironline.net=

Subject: Window Bonding

 

I installed two windows in my ES = with Hysol 9394. I followed the instructions explicitly and after cure (14 = days)there were no air gaps or voids in the bond area. As I was removing th= e clamps after cure that held the window in place I noticed small areas nea= r where I pushed on the fasteners debonded. By pushing on the fiberglass ar= ound the window from the inside I could see the Hysol debond from the plexi= glass. I ended up removing both windows by debonding them using this metho= d.

 

I had been using Hysol 9394 as th= at at one point in time was the Hysol being sold by Lancair. After reviewin= g the spec sheets of Hysol 9360 vs 9394 the major difference noted was the = peel strength of the 9394 (5 Lb/in) vs the

9360

(50 Lb/in) per the data sheets. I= did a crude test using 9394 and 9360 bonding a piece of prexiglass to a pi= ece of fiberglass and allowing it to cure for

14

days. I found that the plexiglass= could be removed from both simply by flexing the fiberglass although the 9= 360 seemed to be slightly better bond.

So...before

I bond these windows in again I w= ould like to be sure of what to use. Has anyone else experienced this pheno= menon?

 

The supplier of the Lancair windo= ws uses MIL-S-8802 to bond windows to aluminum and indicated they thought s= ome builders had used it to bond windows to fiberglass. They also indicated= they used Weld-on 40 to bond fiberglass to the edge of the windows with go= od results.

 

Any insight on this would be grea= tly appreciated.

 

Blue Skies,

 

Tom

 

 

 


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