System and method for decorating metals with more than one color

A system for applying a layer of a second color according to a predetermined pattern, on at least one face of a metal substrate, which is entirely painted with a first colored layer, said system comprising:

• a device for applying a primer according to the predetermined pattern onto at least one face of a metal substrate entirely painted with a first color;
• an injecting gun for spraying UV curable powder coating onto the primer, wherein said UV curable powder coating comprises a second color;
• an air-gun for blowing air onto the UV curable powder for removing excess of UV powder such that the UV curable powder remains only at the location on the metal substrate determined by the primer;
• and
• an IR energy source and a UV energy source for curing the UV curable powder coating;
• whereby a metal substrate, decorated with at least two colors according to the predetermined pattern on at least one face of the metal substrate, is formed.