Path: utzoo!attcan!uunet!jarthur!usc!ucsd!pacbell.com!att!oucsace!oucsace.cs.ohiou.edu
From: bwhite@oucsace.cs.ohiou.edu (Bill White )
Newsgroups: sci.electronics
Subject: Lexan (was Re: Fabrication of cases)
Message-ID: <2006@oucsace.cs.OHIOU.EDU>
Date: 27 Sep 90 04:03:08 GMT
Sender: bwhite@oucsace.cs.OHIOU.EDU
Organization: Ohio U, home of the mighty Hocking River!
Lines: 21


	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.					|