Abstract: The invention relates to a device for applying dot-shaped coatings to metal or metallized bands by way of an electrolysis process or by way of currentless metal extraction, said device being provided with a wheel-shaped guide mechanism along which a metal or metallized band can be passed, and with an endless masking device, which co-operates with the band during operation and which is provided with passages, whose shape is adapted to the desired dot-shaped coating. The masking device is built up of independent masking segments, which are each provided with at least one passage and which are mutually coupled in such a manner that they can move with respect to each other in the longitudinal direction of the masking device.