This concentrate was designed for adding to high impact polystyrene sheet to deliver productivity improvements and added stiffness while reducing raw material costs. Suitable Applications: thermoformed sheet injection molding Environmentally Beneficial Calcium carbonate is a plentiful, natural mineral and can be used to effectively displace a significant portion of the petrochemical based component in the targeted application. The improved productivity and the lower energy consumption awarded by using our concentrates all help to minimize the carbon footprint of the end product. Regulatory Compliance The ingredients in our concentrates are approved for use in direct food contact packaging and are heavy metals free making them compliant with regulations such as California Proposition 65 and CONEG.