> > In a message dated 10/31/2002 7:56:55 AM Eastern Standard Time, > [log in to unmask] writes: > > > > So I guess the reason for a thick coating, if in fact it has vapor > > permeability, > > > Dear Science Wizards, > > Wait a minute. Seems to me that if this stuff is really so thick, it ain't > gonna be permeable. Or am I full of shit, as usual? (Thanks in advance, > Chris) > > Ralph > > Ralph, I thought you had that sleep thing taken care of. It is possible to produce thick and breathable coatings, although film thickness is inversely proportional to permeability, more or less. Some coatings are like glass, others are like cheesecloth. It takes a lot of cheesecloth to hold a drink of water. Edison Coatings, Inc. M. P. Edison President 3 Northwest Drive Plainville, CT 06062 USA Phone: (860)747-2220 Fax: (860)747-2280 email: [log in to unmask] Internet: www.edisoncoatings.com -- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://maelstrom.stjohns.edu/archives/bullamanka-pinheads.html>