METHOD FOR FORMING MULTILAYER COATING FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for improving finish appearance such as smoothness and gloss of a multi-layer coating film comprising applying an intercoat coating material and a solid color topcoat coating material by the two-coat one-bake method. SOLUTION: This method for forming the multi-layer coating film is characterized by applying a melamine resin curing type intercoat coating material on a surface having electrodeposition film cured thereon, applying a carboxyl group . epoxy group curing type or urethane reaction curing type solid color top coat coating material without curing and simultaneously heat-curing both of the films.