Antishock and GPSS, also known as polystyrene, generally called crystal in the market, is a type of plastic. It is obtained from petroleum. It has a colorless, transparent structure. Polystyrene, namely Antishock, which is called PS in the market, provides ease of use in some areas with the use of PS Sheets. Its smooth surface provides an advantage during the cleaning phase. Polystyrene products are those that can be recycled. It is a type of plastic that can be used in a versatile and multi-purpose way. It is preferred because it is heat resistant, has low moisture retention, and is resistant to bacterial growth.