| 摘要 |
PURPOSE:To obtain the titled plastic metal body for a vehicle which does not deteriorate in external appearance, while inhibiting the formation of bubbles, by forming an epoxy resin coating film on the surface of a metal formed body by a cation electrodeposition method, and baking it above the baking temp. of polyamide resin to be applied thereon but below a specified temp. CONSTITUTION:An undercoat film of 10-50mum in thickness, for instance, is formed on the surface of a plastic metal body by a cation electrodeposition method using epoxy resin paint. Then, said undercoat film is baked at a temp. above the baking temp. of polyamide resin in the following step but below 250 deg.C. Thereafter, a powdery polyamide resin body is applied onto the baked coating film by an electrostatic coating method, for instance. Then, the applied powdery polyamide resin body is baked and melted above its melting point by the same method as that in a conventional manner, to form a coating film. The baking temp. at this time is above the melting point of the polyamide resin but below 250 deg.C, pref. 215+ or -5 deg.C. As a result, the obtd. finished product being free from bubbles exhibits excellent external appearance.
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