120395 ⎘
Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating; Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by mechanical pretreatment, e.g. grinding, sanding by formation of electrostatic charges, e.g. tribofriction