... against yellowing and breakage caused by hail. polycarbonate hollow sheet/UV sun panel/PC sheet Features:1) Light transmission: up to 88%2) Impact ... weight of glass of the same thickness5) Ultraviolet resistance: with UV protective layer6) Flame resistance: rated class B1 7) Sound and ... ) Length: 6,000mm/12000mm (our regular specification)3) available in 4mm,5mm,6mm,7.5mm,8mm,10mm,12mm,14mm,16mm ,18mm ...