LAMINATED COATING FILM OF AUTOMOBILE BODY, COATING METHOD OF AUTOMOBILE BODY, AND AUTOMOBILE BODY

摘要

PROBLEM TO BE SOLVED: To provide a laminated coating film of an automobile body that has a high ground concealing property and high appearance, a coating method of the automobile body for reducing the running cost, and the automobile body having the laminated coating film.;SOLUTION: In this laminated coating film of the automobile body, the coating method of the automobile body, and the automobile body having the laminated coating film, an electrodeposition coating film, a first middle coating film, a second middle coating film, a base coating film, and a clear coating film are stacked on a metal substrate in that order. A first middle coating material constituting the first middle coating film and a second middle coating material constituting the second middle coating film are acid epoxy curing middle coating materials containing acrylic resin containing a carboxyl group whose acid value is 50-300 mgKOH/g (solid content) and carboxylic acid ester group, and acrylic resin containing an epoxy group whose epoxy group equivalence is 50-700. The first middle coating material contains a coloring pigment and extender pigment as a pigment, and the second middle coating material contains no pigment or contains only an extender pigment as a pigment.;COPYRIGHT: (C)2012,JPO&INPIT