www.onlinemetals.com is now carrying a variety of plastic supplies, including Teflon sheets from about 1/32 to 1/4 inch thick. I've used this is a company before for various telescope building supplies, and they've given good service. It's a good place to bookmark. - Paul -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.