The effect of UV on the surface of plastic parts?
Protective effect. Maybe you have made special coating or something like that.
The requirement of physical property, since it can play a protective role, means that it has relatively good physical property, such as: hang resistance, abrasion resistance, resistance, chemical resistance, etc., with different effects;
Brightness requirements, UV coating has a lot of gloss performance, if you need high light, pressure light, bright light, etc., the product surface can achieve a better effect