Hi Jerry, Monday, May 14, 2007, 1:43:48 AM, you wrote: J> I didn't see much comment on the weight. I'll pass on what skilled mirror J> maker has told me. About .2 to .25 pounds per square inch. Last I heard, Stewart Lab uses 0.5 PSI -- Best regards, Richard in the UK _______________________________________________ ATM mailing list http://www.atmlist.net/