| abstract |
(57) [Summary] [Problem] To improve a 2 wet coating system. SOLUTION: A step of forming an uncured electrodeposition coating on a conductive substrate, a step of applying an intermediate coating on the electrodeposition coating, and simultaneously heating and curing the coating, On the coated film, a step of forming an uncured base coating film, and further, after applying a clear top coating film on the base coating film, a step of simultaneously heating and curing the uncured coating film. A method for forming a coating film, wherein the electrodeposition paint is in a cured state. Forming a layer-separated coating film, wherein, among the electrodeposition coating films formed from the electrodeposition coating material, the dynamic glass transition temperature of the resin layer (α) directly in contact with the conductive substrate; A method for forming a multilayer coating film, comprising controlling a dynamic glass transition temperature of a resin layer (β) directly in contact with a film. |