| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of forming a multilayer coating film, by which coating film smoothness as a multilayer coating film in a 3 coat 1 bake system on a electrodeposition coating film is attained, and the multilayer coating film. SOLUTION: The method of forming the multilayer coating film is performed by applying successively an intermediate coating material, a top coating base coating material and a top coating clear coating material on the surface of the cured electrodeposition coating film having <=25% absorption rate of toluene to the electrodeposition film film-formed on the base material by a cation electrodeposition coating material to form a 3 layer coating film of an uncured intermediate coating film, top base coating film and top clear coating film and heating and curing simultaneously the 3 layer coating film. |
