Polystyrene
Available from Indiana Polymers, Inc.
Polystyrene is well suited for extrusion, injection molding and compression molding. In its unfilled state, polystyrene is usually labeled crystal polystyrene, although GPPS (general purpose polystyrene) is sometimes used, as well.
High impact polystyrene (HIPS) is modified with butadiene rubber to boost impact strength.
