Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Fri, 09 May 2003 14:54:40 -0400 Message-ID: X-Original-Return-Path: Received: from fed1mtao05.cox.net ([68.6.19.126] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2341811 for flyrotary@lancaironline.net; Fri, 09 May 2003 10:59:44 -0400 Received: from smtp.west.cox.net ([172.18.180.51]) by fed1mtao05.cox.net (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with SMTP id <20030509145937.JJVW20191.fed1mtao05.cox.net@smtp.west.cox.net> for ; Fri, 9 May 2003 10:59:37 -0400 From: X-Original-To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] 321 SS thickness X-Original-Date: Fri, 9 May 2003 10:59:33 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Original-Message-Id: <20030509145937.JJVW20191.fed1mtao05.cox.net@smtp.west.cox.net> > > "Haywire" wrote: > ... > Has anybody considered having the interior wall of the exhaust pipe ceramic > coated? I've already had the rotors ceramic coated, and the company that did > them recommended that the exhaust pipe be done as well, but it needs to be > done while new, as it is impossible to properly clean exhaust residue from > the inside of the pipe. I don't think that last statement is exactly true. Pickling solution (main ingredient: phosphoric acid) has long been used in industry to absolutely clean carbon steels before painting. The slight etching it does to the surface has a lot to do with the exceptional durability of factory automotive paint jobs. What I can't tell you is how SS321 will respond to pickling, or whether ceramic coating will adhere as well to the etched surface as paint does. Hope this is some help. Dale