Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5b7) with ESMTP id 941103 for rob@logan.com; Sat, 27 Oct 2001 01:57:21 -0400 Received: from sue.THE-I.NET ([206.136.176.251]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Fri, 26 Oct 2001 23:48:00 -0400 Received: from pavilion (unverified [209.33.169.206]) by sue.THE-I.NET (Vircom SMTPRS 5.0.194) with SMTP id for ; Fri, 26 Oct 2001 22:58:17 -0500 Message-ID: <000001c15e9c$c0c30540$cea921d1@pavilion> From: "J. N. Cameron" To: "Lancair List" Subject: PPG Paints Date: Fri, 26 Oct 2001 18:52:33 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Regarding the recent discussion of PPG paints, when I tried to use them I had major fisheye problems. In spite of two visits to my shop by PPG tech reps and numerous discussions about the cause (not to mention a new spray gun, new filter system, new hoses, etc., etc.) , I never did solve the problem. Finally switched to DuPont Imron, and have had no further problems. The only clue I have is based on a suggestion from a builder Down Under. The PPG paints use three components, the last of which is added in very small quantity. The natural thing is to use a 5 cc plastic syringe to dispense these small volumes accurately, which is what I did. My Aussie correspondent pointed out that the plungers of most disposable (medical) syringes are lubricated with silicone, and silicone is a potent generator of fisheyes in paint. By the time I received this note, I had already switched to Imron and was fairly well along, so I haven't gone back and experimented to see if using another method of measuring would eliminate the fisheyes. The message is, if you use the PPG system, be careful what you use to measure out the components. Some syringes have an all plastic plunger; an alternative would be a small-volume measuring cylinder or cup. The DuPont system is two-part, so both volumes are usually measured into a graduated mixing cup. That may be the reason I haven't had the dreaded fisheyes with Imron. Jim Cameron N143ES reserved (last paint going on now) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>