H.I.P.S (High Impact Poly Styrene Sheet)

Polystyrene (PS) , is an aromatic polymer made from the aromatic monomer styrene, Polystyrene is a thermoplastic substance, normally existing in solid state at room temperature, but melting if heated (for molding or extrusion), and becoming solid again when cooling off. Polystyrene is one of the most widely used kind of plastic.