MULTILAYER FILM FORMING METHOD

摘要

Disclosed is a method for forming weather resistant multilayer films involving the following steps performed in order: a step (1) for coating a steel substrate with an electrodeposition coating material and thermally curing the same to form a cured electrodeposited film; a step (2) for coating said cured electrodeposited film with a first coloration coating material (X) to form a first coloration film, said first coloration coating material (X) containing (A) a binder component, and also containing, per 100 solid parts by weight of the binder component (A), 50-200 parts by weight of a titanium dioxide pigment (B), 0.1-50 parts by weight of a red-yellow-based color pigment (C), and a 0.01-10 parts by weight chromatic pigment (D) in a complementary relation with the red-yellow-based color pigment (C); a step (3) for coating said first coloration film with a second pigment coating material (Y) to form a second coloration film; a step (4) for coating said second coloration film with a clear coat coating material (Z) to form a clear coat film; and a step (5) for thermally curing simultaneously the aforementioned three films formed in steps (2)-(4).