Method for forming coating and base coating paint used therefor

摘要

A coating method is disclosed, which comprises coating a base coating paint on a substrate, coating thereon a clear coating paint of a curing system different from that of the base coating paint in a wet-on-wet state, and then baking the resultant coatings, wherein a curing catalyst for curing the clear coating paint is incorporated into the base coating paint and wherein the curing catalyst has a boiling point of 150 DEG C. or higher under 760 mmHg. The base coating paint comprising such a curing catalyst is also disclosed.