To save on shipping costs, users choose to roll polycarbonate sheets for transportation. Occasionally, sheets break. The reasons for this are:

1. National standard polycarbonate sheets break, while non-standard polycarbonate sheets do not. This is because national standard polycarbonate sheets have a higher gram weight and are harder than non-standard sheets, resulting in greater elasticity after being rolled. Furthermore, PC polycarbonate is inherently sensitive to notches, so the edges of rolled polycarbonate sheets can "blow apart" if scratched by sharp stones.

2. The rolls have been stored for too long. The diameter of the rolled polycarbonate sheets is relatively small, far exceeding the allowable range (normally, the bending radius ofdouble-layer polycarbonate sheetsshould be ≥ 175 times the thickness). The time from roll loading to destination should not exceed three hours. Upon arrival, the sheets should be immediately unrolled and stored in a warehouse.

3. The edges of the polycarbonate sheets are scratched during transportation. The rolled polycarbonate sheets are loaded onto the truck after being rolled, causing scratches on the surface, and the bumpy transportation can cause cracks.