| 摘要 |
The present invention provides: luster coating film forming method I comprising (1) applying an aqueous luster thermosetting base coating composition (A) to a substrate in two to five stages, in such a manner that the thickness of the base coating composition (A) applied in each of the second and subsequent stages becomes 0.3 to 5 mum when cured; (2) applying a thermosetting clear coating (B) over the uncured or heat-cured coating layer of the base coating composition (A); (3) applying an aqueous luster thermosetting base coating composition (C) over the uncured or heat-cured coating layer of the clear coating composition (B) in two to five stages; (4) applying a thermosetting clear coating composition (D) over the coating layer of uncured or heat-cured coating layer of the base coating composition (C); and (5) heating the four-layer coating comprising the base coating composition (A), clear coating composition (B), base coating composition (C) and clear coating composition (D) to obtain a cured four-layer coating film; and luster coating film forming method II comprising the above steps (1) to (5) and further including the step of applying and curing a thermosetting clear coating composition (E).
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