Verfahren zur Herstellung von beschichteten Werkstuecken

A process is used for the production of coated workpieces made of totally or only partially electrically non-conductive materials, in particular plastics. In said process, the electrical conductivity of the non-conductive areas of the workpiece surface to be coated is first increased by a controlled oxidation reaction followed by the application of an electrostatic coating. Oxidation of the non-conductive workpiece surface can be performed by etching using a highly ionized gas generated by a discharge process, either in the form of a corona or a plasma discharge, or by treatment with an oxidizing flame or an oxidizing acid.