... :no limited Thickness from 3.8mm to 16mm variety of Polycarbonate sheet:Features of pc sheetLight Transmisson, Fire Retardancy, Impactresistance, UA- ... gas.3, Impactresistance, because the impact strength of pc sheet is 250-300 times of the ordinary glass.4, UV ... -Protection, With an ultraviolet coextruded film on the sunshine, itcan prevent the resin fatigue or yellowing ...