X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 08 Jan 2010 14:09:12 -0500 Message-ID: X-Original-Return-Path: Received: from mail-pw0-f48.google.com ([209.85.160.48] verified) by logan.com (CommuniGate Pro SMTP 5.3.0) with ESMTP id 4067523 for lml@lancaironline.net; Wed, 06 Jan 2010 20:38:21 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.48; envelope-from=indigoaviation@gmail.com Received: by pwj14 with SMTP id 14so3883070pwj.27 for ; Wed, 06 Jan 2010 17:37:46 -0800 (PST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=YJHVhZp4X++ZGKMpZkqKT79NpReMZg8WNPMGsElUQNnZcXRQctYG6ltE3QhZhDwSpU eZdDrX9BPsHCjCMN6qRqZboiCTsPcTsZ/0JYFqVDMhQAmpAxGSWPVKqzLaqXcJKPFy// dOGlJqNvan0qAJYeHFAIrQytOCQxHSw0E+xJk= MIME-Version: 1.0 Received: by 10.141.90.12 with SMTP id s12mr2465339rvl.259.1262828266652; Wed, 06 Jan 2010 17:37:46 -0800 (PST) In-Reply-To: References: X-Original-Date: Wed, 6 Jan 2010 20:37:46 -0500 X-Original-Message-ID: Subject: Re: [LML] Gasket material for fuel tank inspection cover. From: swaid rahn X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=000e0cd111b23f0448047c891ee7 --000e0cd111b23f0448047c891ee7 Content-Type: text/plain; charset=ISO-8859-1 Hi Chris, The spec for pro-seal is MIL-S-8802 Type II B1/2 or B2 or A1/2 or A2. The "B" means you apply it with a spatula or tongue depresser, its real thick like peanut butter. The 1/2 means .5 hour pot life, 2 means 2 hour pot life. The "A" means its a thinner mixture like thick paint. I would use the "B" for fuel panel sealant. The "A" is usually used between skins on pressurized acft. It should be mixed 10/1 by weight or volume. If you don't have scales mix it to a dark grey but not black. Putting extra hardner in will make it cure a faster but it makes the sealant weaker. It is strong stuff, it has a shear strength of around 300 pounds per square inch. I hope this helps. Good Luck, Swaid Rahn On Sun, Jan 3, 2010 at 4:09 PM, cskelt@earthlink.net wrote: > > Folks, > I put an inspection hatch into the inner wing rib to allow access into the > tank. There's a large phenolic ring embedded in the inner side of the rib. > I'm now looking for some gasket material to replace the 40+ year old > rubberized cork material I used for the trial assembly while building. The > photos show the hole with and without the aluminum cover plate. I'm > requesting any suggestions for gasket material and any additional sealant > needed. Thanks in advance. > > Regards, Chris. > > -- > For archives and unsub > http://mail.lancaironline.net:81/lists/lml/List.html > > --000e0cd111b23f0448047c891ee7 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi Chris,
The spec for pro-seal is MIL-S-8802 Type II B1/2 or B2 or A1/2 or A2. = The "B" means you apply it with a spatula or tongue depresser, it= s real thick like peanut butter. The 1/2 means .5 hour pot life, 2 means 2 = hour pot life. The "A" means its a thinner mixture like thick pai= nt. I would use the "B" for fuel panel sealant. The "A"= is usually used between skins on pressurized acft. It should be mixed 10/1= by weight or volume. If you don't have scales mix it to a dark grey bu= t not black. Putting extra hardner in will make it cure a faster but it mak= es the sealant weaker. It is strong stuff, it has a shear strength of aroun= d 300 pounds per square inch. I hope this helps.
Good Luck,
Swaid Rahn
=A0
=A0


=A0
On Sun, Jan 3, 2010 at 4:09 PM, cskelt@earthlink.net <cskelt@earthlink.net> wro= te:

Folks,
I put an inspectio= n hatch into the inner wing rib to allow access into the
tank. =A0There&= #39;s a large phenolic ring embedded in the inner side of the rib.
I'm now looking for some gasket material to replace the 40+ year oldrubberized cork material I used for the trial assembly while building. =A0= The
photos show the hole with and without the aluminum cover plate. =A0I= 'm
requesting any suggestions for gasket material and any additional sealantneeded. =A0 Thanks in advance.

Regards, Chris.

--
For ar= chives and unsub http://mail.lancaironline.net:81/lists/lml/List.ht= ml


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