Cadillac Plastic has a warehouse in Naperville, IL and other
cities in the U.S. You can call there and they can give you
more than you would ever want on the different
properties of plastic.
If you are near one of their distribution centers, they usually
have scrap that they will sell you, or you can order what you
want in small amounts. Not all plastic manufactures tend to be
These guys tend to be user friendly when you tell them you are
an “artist”, student or just looking for small amounts of
The number in Naperville, IL is (630) 428-4350. I’m sure they
will give you the phone numbers of other distribution sites that
may be closer to you.