| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating method improved in the interlayer adhesion between an intermediate coating film for an inside plate part and a clear coating film and so on in the coating method of the inside plate part and the outside plate part of automobile car body. SOLUTION: In this coating method for automobile car body, by which an under coating material A is applied on the inside plate part and the outside plate part of the automobile car body, the coating film is cured by heating, an intermediate coating material B is applied on the outside plate part, an intermediate coating material C of top coating color is applied on the inside plate part without curing the coating material B, both layers are cured by heating, then a top coating color coating material D is applied on the outside plate and a clear coating material E is applied on the inside plate part and further a clear coating material F is applied on the outside plate part, thereafter they are cured by heating, a coating material obtained by using a block polyisocyanate compound and/or an alkoxy silane group-containing resin with a resin composition to be cross-linked and cured by the reaction of carboxyl group with epoxy group in combination is used as the clear coating material E, and a coating material containing a resin composition to be cross-linked and cured by the reaction of carboxyl group with epoxy group is used as the clear coating material F.
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