GPPS sheets, or General-Purpose Polystyrene Sheets, are thermoplastic sheets made from the monomer styrene with elastomer as an additive. They are known for their extra-durability, high eligibility, and impact strength at low temperatures, as well as their chemical resistance and dimensional stability. GPPS sheets are used in a variety of industries, including household, construction, healthcare, food service, food packaging, refrigerator components, healthcare, diagnostic labware, and XPS insulation. GPPS sheets are light in weight, low in water absorption, easy to color, and easy to process. They can also maintain their mechanical properties and dimensional stability in a humid environment.

They are available in transparent, semi-transparent, and opaque colours. GPPS textured sheets are available as well.