X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 07 Mar 2011 10:38:00 -0500 Message-ID: X-Original-Return-Path: Received: from [208.43.167.248] (HELO iviva.nsglobalhost.net) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTPS id 4893103 for lml@lancaironline.net; Sun, 06 Mar 2011 22:50:57 -0500 Received-SPF: neutral receiver=logan.com; client-ip=208.43.167.248; envelope-from=charles.r.patton@ieee.org Received: from pool-74-100-51-215.lsanca.fios.verizon.net ([74.100.51.215] helo=[192.168.0.123]) by iviva.nsglobalhost.net with esmtpa (Exim 4.69) (envelope-from ) id 1PwRSd-0000cX-Nk for lml@lancaironline.net; Sun, 06 Mar 2011 22:50:19 -0500 X-Original-Message-ID: <4D7455B9.1010506@ieee.org> X-Original-Date: Sun, 06 Mar 2011 19:49:13 -0800 From: Charles Patton User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] Re: Burned dust cover looking for material that wontburn. References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - iviva.nsglobalhost.net X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - ieee.org What about a small patch of thicker dull black anodized aluminum, or even better, blackened copper? The marks I generally saw on my plane and others looked to be primarily melting the plastic. I recovered our dash's plastic that had several melt "burn" marks with leather and ended up with one more scorch mark on it -- not a big one, but still visible. So my t thought is that if the aluminum is thick enough, it will conduct the heat away and spread it out. That's why the alternate material of copper would be even better, very high melting point, and better heat conductivity. What I'm less clear on is the black copper coating durability. Anodized aluminum coatings are extremely robust. So the best of two worlds -- bonded aluminum/copper sandwiches like our "silver" coinage. The anodized aluminum up, and copper underneath? Regards, Charles Patton ex-LN2 owner