abstract |
Method for coating light metal wheels, characterized in that a mechanically processed blank is coated with a light metal rim of an aluminum cast alloy of at least three layers, comprising primer layer (A), layer of base (B) and transparent varnish (C), in which case they are respectively different coating masses, the primer layer (A) comprising at least one radiation-curable coating mass with an acid number according to DIN EN ISO 3682 (potentiometrically) from 10 to 120 mg KOH / g, which is applied directly to the substrate, and applying a layer of transparent radiation-curable varnish with a double bond density of radically polymerizable reactive groups per coating mass of at least 1 mol / kg on the outer side of the light metal rims, and this coating mass hardening by radiation. |