Polystyrene (PS), obtained by polymerization of styrene, is a type of thermoplastic with a wide variety of uses. Polystyrene (PS) is classified as Antishock (HIPS), Crystal (GPPS) and Foam (EPS) according to the way it is processed. Because it is extremely easy and economical to process, Polystyrene (PS) is used instead of paper, wood and metals in many industries. It is widely used in areas such as film and sheet making, paper and fabric coatings, insulation plates, lighting materials, refrigerator-washing machine parts, battery boxes, radio and television cases, toys and household goods. “Thermoplastic” or “depending on the PS type. It can be classified as “thermoset” material. Thermoplastic materials become completely liquid at the melting point. An important feature with thermoplastics is that they can be heated to their melting point, cooled and reheated without significant deterioration. It offers excellent product protection and impact resistance. HIPs are ideal for plastic space-saving nested packaging and containers.