... resin, and both sides of the sheet contain UV protective layer. There are many excellent features ... impact-resistance, heat insulation, soundproof, lighting, anti-UV and fire retardation, etc., and the sheet as ... Polycarbonate Hollow Sheet: 1) Impact strength: 850J/m. About 200-350 times of common glass.2) ... g/cm35) Coefficient of thermal expansion: 0.065 mm/m° C6) Temperature range: -40° Cto 120° C7 ...