PC board has a smooth surface of high transparency, free from impurities,. In order to meet the different requirements of different customers, different PC board surface treatment is employed. Coating separates PC sheet and the surrounding environment, to prevent the plate from softening. Scratch resistant PC sheet has high hardness scratch resistant coating on its surface; Anti-static PC board a layer of anti-static hard film on the surface through advanced surface coating technology, which not only retains inherent physical characteristics of the polycarbonate, but also gives it the ability to eliminate static electricity.