| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for forming an excellent chipping-proof laminated paint film capable of preventing deterioration such as a paint film damage due to flying stone, rusting caused thereby or the like on a surface of a metal- made material to be painted. SOLUTION: A chipping-proof primer 1 containing an amine modified epoxy resin, a block isocyanate, and a rust-proof pigment is applied to a part liable to suffer chipping on a metal-made material to be painted, and a chipping-proof primer paint film 1 is formed. A thermosetting powder coating is applied onto the primer paint film 1, heated at a temperature wherein the powder paint film 2 is completely not thermally set, and the powder paint film 2 is formed. Then, the material to be painted is dipped into an electrolytic coating bath, and an electrolytic deposition paint film 3 is formed. Further, the primer paint film 1, the powder paint film 2, and the electrolytic deposition paint film 3 are simultaneously cured by heating, and a laminated paint film is formed. A face coating paint film 4 is formed on the obtained laminated paint film.
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