| 摘要 |
The present invention is to provide a method for forming a plural-layered coated film which is excellent in surface smoothness while phase mixing between an intermediate coating film and a base coating film is effectively prevented. The method comprises coating successively an aqueous intermediate coating paint, an aqueous base paint and a clear paint on an electrodeposition coated film in a wet-on-wet manner, and baking and curing them at the same time, wherein an intermediate coating film formed of the aqueous intermediate coating paint has a water absorption rate of coating film of 10% or less and a water dissolving rate of coating film of 5%, and the aqueous intermediate coating paint contains an acrylic resin emulsion, a urethane resin emulsion, and a curing agent.
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