Marabu’s Mara Panel MPA, a new line of specialty decorative inks, features an outstanding opaque white, plus a deep, non-conductive black developed specifically for printing on the back (second surface) of popular PMMA or PC plastics — both extruded and injection-moulded. The majority of decorative prints for household appliances are in black or white. However, speciality inks are available from Marabu for silver-metallic effects mimicking the appearance of aluminum or stainless steel. Operating panels often include displays for the time, date or machine-function symbols. For these substrates, it is possible to use a combination of Mara Panel MPA inks and varnishes. These comprise the diffusor and filter products in the Mara Star SR range. They can be employed for transparently coating the display window within the panel, and are suitable for LED backlighting.