| abstract |
Provided is a method for forming a multilayer coating film, comprising the following steps (1) to (5) performed in sequence: (1) a step in which a colored coating is applied to an object to be coated, and the object is heated to form a colored coating film; (2) a step in which a base coating is applied on the colored coating film formed in step (1) to form a base coating film; (3) a step in which a metallic pigment dispersion is applied on the base coating film formed in step (2) to form a metallic coating; (4) a step in which a clear paint is applied on the metallic coating formed in step (3) to form a clear coating film; and (5) a step in which by heating the uncured base coating film, uncured metallic coating film and uncured clear coating film formed in steps (2) to (4), these three coating films are cured simultaneously. Therein, the metallic pigment dispersion contains water, a viscosity regulator, and a scale-form metallic pigment, and has a solids content ratio of 0.5-10% by mass, the scaly metallic pigment is an interference pigment obtained by coating a transparent or semi-transparent base material with a metal oxide, and the amount of scaly metallic pigment contained is 30-90 parts by mass with respect to 100 parts by mass of total solids in the metallic pigment dispersion. |