PROCESS FOR THE PRODUCTION OF AN AUTOMOTIVE OEM MULTI-LAYER COATING

摘要

A process for the production of an automotive OEM multi-layer coating, comprising the steps: (1) applying a base coat layer onto an automotive substrate, (2) applying a clear top coat layer onto the base coat layer, and (3) jointly curing the base coat and clear top coat layers, wherein the base coat layer is applied from a modified water-borne base coat produced by mixing an unmodified water-borne base coat with a polyisocyanate crosslinker component making use of a static mixer, and wherein the polyisocyanate crosslinker component comprises at least one polyisocyanate crosslinker and gamma-butyrolactone as water-miscible solvent.