X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 20 Dec 2009 07:51:03 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-mealy.atl.sa.earthlink.net ([209.86.89.69] verified) by logan.com (CommuniGate Pro SMTP 5.3c4) with ESMTP id 4031939 for lml@lancaironline.net; Sun, 20 Dec 2009 07:44:33 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.69; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=LRPjPti9bWmF7xvd7/jIsyZA1u9DiqMBNLv5dcMWDiUUQL+BHWjVkHCHlWFWWMwN; 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-mealy.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1NML8g-0007Kg-7d for lml@lancaironline.net; Sun, 20 Dec 2009 07:43:58 -0500 X-Original-Message-ID: From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Intumescent firwall coating X-Original-Date: Sun, 20 Dec 2009 07:43:57 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0204_01CA8148.300E1C60" 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: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9406cdb6bee6858309feba3a96d6d86e210350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.33 This is a multi-part message in MIME format. ------=_NextPart_000_0204_01CA8148.300E1C60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bad data alert!!! (pardon the email yelling Scotty). The data below is for 3m Nextel ceramic cloth. I have not been able to = obtain any hot side/cold side data for the Thermo-Lag 3000 or any other = intumescent. My take away so far is that you need to build something that has high = insulating properties and will hang together to the cold side temp of = the barrier whatever you are using..... So depending on what you = use for a barrier you still have to deal with 500 dF to 1000 dF. Anyone have a suggestion? =20 ----- Original Message -----=20 From: Jim Nordin=20 To: lml@lancaironline.net=20 Sent: Sunday, December 20, 2009 2:36 AM Subject: [LML] Intumescent firwall coating And now with the data of hot/cold side temperatures for intumescents, = I may have to go back to the stainless/fiberfrax as the preferred = combination although I don't have any data on that at all. It may be I have to put an intumescent coating on top of the = stainless/fiberfrax original or under those. My firewall is = glass/plywood/glass so it might not be as scary as softening honeycomb. = Yeah, I think I'll believe that so I can move forward. Feel much better = now. Jim -------------------------------------------------------------------------= ----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = mikeeasley Sent: Friday, December 18, 2009 9:52 AM To: lml@lancaironline.net 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_0204_01CA8148.300E1C60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bad data alert!!! = (pardon the=20 email yelling Scotty).
 
The data below is for 3m Nextel ceramic = cloth.   I have not been able to obtain any hot side/cold side = data=20 for the Thermo-Lag 3000 or any other intumescent.
 
My take away so far is that you need to = build=20 something that has high insulating properties and will hang together to = the cold=20 side temp of the barrier whatever you are=20 using.....        So depending on = what you=20 use for a barrier you still have to deal with 500 dF to 1000 = dF.
 
Anyone have a suggestion?   =
 
 
----- Original Message -----
From:=20 Jim=20 Nordin
Sent: Sunday, December 20, 2009 = 2:36=20 AM
Subject: [LML] Intumescent = firwall=20 coating

And now with = the data of=20 hot/cold side temperatures for intumescents, I may have to go back to = the=20 stainless/fiberfrax as the preferred combination although I don=92t = have any=20 data on that at all.

It may be I = have to put=20 an intumescent coating on top of the stainless/fiberfrax original or = under=20 those. My firewall is glass/plywood/glass so it might not be as scary = as=20 softening honeycomb. Yeah, I think I=92ll believe that so I can move = forward.=20 Feel much better now.

Jim

 

From: Lancair=20 Mailing List [mailto:lml@lancaironline.net] On Behalf Of = mikeeasley
Sent: Friday, December 18, 2009 = 9:52=20 AM
To:=20 lml@lancaironline.net
Subject: [LML] Re: Intumescent = firwall=20 coating

Colyn,

It seems that the = firewall blanket=20 has to serve two purposes, one to keep the fire from penetrating the = firewall,=20 and two to keep the heat from softening the firewall.  If I read = the=20 chart correctly, you would start softening the firewall at about 500F = in the=20 engine compartment, since the 3M material cuts the temp in about=20 half.

Mike=20 Easley

In a message dated 12/18/09 08:19:52 = Mountain Standard=20 Time, colyncase@earthlink.net writes:

Here's a document of = the sort I=20 was hoping to find for the intumescent = paint.

It shows hot face vs. = cold face=20 temperature.

Based on the original, = it seems=20 to me that is the worry.   e.g. the firewall gets soft = somewhere=20 above 250.

http://www.3m.com/market/industrial/ceramics/pdfs/hotface_cold%= 20face.pdf

the home page is=20 here:

http://www.3m.com/market/industrial/ceramics/materials/fabric= _312_aero.html

 

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