| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for forming a coating film having an excellent chipping resistance in a so-called three coat-one bake method in which an intermediate coating, a base coating, and a clear coating are applied and heat-cured at the same time in the case that a material coated by electrodeposition, such as an automobile body or the like, is coated. SOLUTION: This coating film forming method comprises a process (1) for applying an intermediate coating containing mica powder on a material coated by electrodeposition to form an uncured intermediate coating film, a process (2) for applying a base coating on the uncured intermediate coating film obtained by the process (1) to form an uncured base coating film, a process (3) for applying a clear coating on the uncured base coating film obtained by the process (2) to form an uncured clear coating film, and a process (4) for simultaneously heat-curing the uncured intermediate coating film, base coating film, and clear coating film obtained by the process (3).
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