Usually, due to the low hardness value of PC base material, by adding after the hard coating surface hardness value generally < 2 h; Acrylic (PMMA) base material can be up to 6 h or more. Hardening treatment based on reason base material can improve the surface hardness of a certain value.
PC surface hardened treatment method:
The first approach, in the early days, acrylic hardening is the use of quartz material under the condition of vacuum treatment of yakeli the surface coating, through such processing, can be on the surface of acrylic sheet form a layer of very hard wear resistant film.
The second method, then improve the upgrade process, through soaking process on the surface of acrylic coating on a high hardness and difficult to brittle materials, this method compared with the quartz material coating is better, and simple process than the first one.
The third method -- along with the development of improved and hard process, is given between reflective film and acrylic film base, the technology of coating the plank after friction and is not easy to brittle fracture.
Fourth method -- now, began to use organic matrix in surface coating, this coating containing organic oxide particles is currently using more useful process, coating after acrylic, surface are difficult to scratch, and not easy to brittle fracture.