... :1) Thickness: 4mm, 4.5mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm2) Maximum width: 2, 100mm3) Length: Any dimension4) Specific gravity ... same thickness3) Transparency: The light transmission of a 3mm solid PC sheet is 88%, and the light transmission of a6mm hollow PC ... and windows. The minimum radius of curvature of a PC sheet is 175 times of its thickness. Polycarbonate Sheet