bwhite@oucsace.cs.ohiou.edu (Bill White ) (09/27/90)
In an earlier article, I wrote that Lexan was probably not thermoplastic. Since then I've been corrected several times. Lexan which is polycarbonate) is indeed thermoplastic, with a heat deflection temperature of 290F (with much thanks to ornitz@kodak.com for supplying that info). I tried to heat-form it, and found that it is indeed possible and quite easy with enough heat; my problem has always been heating both sides in thicker materials. Anyway, I like Lexan because of its durability. I've also seen composite materials (Lexan with an overcoat of god knows what) which are exceptionally scratch resistant (one sample I got I rubbed with steel wool, with no effect). Have fun, and enjoy. Oh, by the way, I didn't mention hot-knife cutting -- more on that later. | Bill White Internet: bwhite@oucsace.cs.ohiou.edu | | HILLYER'S SECOND LAW: | | Remember: if you die, you still live in an | | alternate reality. |