VM system:The light-curing primer on the plastic substrate combines well with the light-curing topcoat attached to the thin metal coating and gives a mirror effect. The thickness of the vacuum electroplating layer is about 30-300nm, and the metals used are: aluminum, chromium or tin. In addition to the aesthetic effect of mirror design, light-curing coatings can protect metal coatings and plastic substrates, giving them better chemical resistance and corrosion resistance, good mechanical properties, while increasing productivity and reducing energy consumption.