... Colorsclear, blue, green, brown, opalTechnical features:1) Impact strength: 850J/m.The impact resistance of polycarbonate solid sheet is about 200 ... gravity: 1200kg/cbm6) Coefficient of thermal expansion: 0.065 mm/m°C7) Tensile strength: >60N/mm28) Flexural strength: 100N/mm29) ... 9 W/m2°C15) Soundproof index:4mmthickness--27dB, 5mm--28dB, 6mm--29dB, 8mm--31dB, 10mm-32dB 12mm--34dB16)Fire retardant: B1 ...