Not only decorative, but also functional layers could be applied. Thinkable approaches are antibacterial coatings, EMV-shielding, electrical conductive layer (e.g. on electroplating components before the actual electroplating) or antennas. Each electrical conductive and non-magnetic metal and its alloys can be used as a metallic layer. This is a clear unique selling point, compared to batch processes, in which the selection of possible coating materials is much more limited.