Return-Path: Received: from m21.boston.juno.com ([205.231.100.189]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Thu, 11 Mar 1999 20:37:11 -0500 Received: (from earl_schroeder@juno.com) by m21.boston.juno.com (queuemail) id D5GNFKAP; Thu, 11 Mar 1999 20:38:46 EST To: lancair.list@olsusa.com Date: Thu, 11 Mar 1999 19:41:53 -0600 Subject: MC & acetone comments Message-ID: <19990311.194157.10414.0.Earl_Schroeder@juno.com> From: Earl E Schroeder X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I must agree (for the most part) with Steve & Fred about the use of 'pressurized' acetone. We use almost as much acetone as MC when manuf Lexan and I would never recommend 'spraying' acetone from a pressurized vessel. A Static spark is another source that could ruin your day. I believe (if memory serves me well) that the sp.gr. of acetone is around 0.7 and MC is over 1.0 so that would indicate acetone rises and MC would fall to the floor but caution is still in order. I would only guess that the reason Home Depot etc sell MC mixed with other chemicals is it circumvents EPA/OSHA restrictions..... I liked Steve's clear and simple way of testing for the best solvent to use. Earl Schroeder Mt Vernon, In 47620 812 985-3339