X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 20 Dec 2009 02:44:15 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-curtail.atl.sa.earthlink.net ([209.86.89.64] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4028301 for lml@lancaironline.net; Fri, 18 Dec 2009 16:52:28 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.64; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=fIXhKwGaTuGfpMQ9FzrzXzgT9aJtoS7MjOwOAyPfR6/vs3hfV6ds0bywrd8yW12n; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.33] (helo=ccaselt3) by elasmtp-curtail.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1NLkjn-0008R3-Nb for lml@lancaironline.net; Fri, 18 Dec 2009 16:51:51 -0500 X-Original-Message-ID: <38A6A91199F24C8594502C733EDD2B61@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Intumescent firwall coating X-Original-Date: Fri, 18 Dec 2009 16:51:51 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0078_01CA8002.65610EF0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da940ab8ca38d1631416f6025503194bed5a0350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.33 This is a multi-part message in MIME format. ------=_NextPart_000_0078_01CA8002.65610EF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable roughly. some of the materials toward the bottom of the page are a tad = better than 1/2 hot face. =20 but approximately that is true and that is a good reason to look for = something better.... ----- Original Message -----=20 From: mikeeasley=20 To: lml@lancaironline.net=20 Sent: Friday, December 18, 2009 10:52 AM Subject: [LML] Re: Intumescent firwall coating Colyn, It seems that the firewall blanket has to serve two purposes, one to = keep the fire from penetrating the firewall, and two to keep the heat = from softening the firewall. If I read the chart correctly, you would = start softening the firewall at about 500F in the engine compartment, = since the 3M material cuts the temp in about half. Mike Easley In a message dated 12/18/09 08:19:52 Mountain Standard Time, = colyncase@earthlink.net writes: Here's a document of the sort I was hoping to find for the = intumescent paint. It shows hot face vs. cold face temperature. Based on the original, it seems to me that is the worry. e.g. the = firewall gets soft somewhere above 250. = http://www.3m.com/market/industrial/ceramics/pdfs/hotface_cold%20face.pdf= the home page is here: = http://www.3m.com/market/industrial/ceramics/materials/fabric_312_aero.ht= ml ------=_NextPart_000_0078_01CA8002.65610EF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
roughly.   some of the = materials toward=20 the bottom of the page are a tad better than 1/2 hot = face.   =20
but approximately that is true and that = is a good=20 reason to look for something better....
----- Original Message -----
From:=20 mikeeasley=20
Sent: Friday, December 18, 2009 = 10:52=20 AM
Subject: [LML] Re: Intumescent = firwall=20 coating

Colyn,
 
It seems that the firewall blanket = has to serve=20 two purposes, one to keep the fire from penetrating the firewall, and = two to=20 keep the heat from softening the firewall.  If I read the chart=20 correctly, you would start softening the firewall at about 500F in the = engine=20 compartment, since the 3M material cuts the temp in about = half.
 
Mike Easley
 
 
 
In a message dated 12/18/09 08:19:52 Mountain Standard Time,=20 colyncase@earthlink.net writes:
 
Here's a document of the sort I was = hoping to=20 find for the intumescent paint.
It shows hot face vs. cold face=20 temperature.
Based on the original, it seems to = me that is=20 the worry.   e.g. the firewall gets soft somewhere above=20 250.
 
http://www.3m.com/market/industrial/ceramics/pdfs/hotface_cold%2= 0face.pdf
 
the home page is here:
 
http://www.3m.com/market/industrial/ceramics/materials/fabric_= 312_aero.html
 
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