PSt

PSt (polystyrene) is a rigid thermoplastic polymer belonging to the vinyl aromatic family, valued for its ease of processing, transparency, and dimensional stability. It is widely used in consumer products, packaging, electrical insulators, and medical devices where moderate stiffness and low-cost production are priorities. Engineers select PSt for applications requiring good chemical resistance and dimensional accuracy, though it is limited to moderate temperature environments and offers lower impact resistance than toughened variants like HIPS or ABS.