PROBLEM TO BE SOLVED: To obtain the subject molded product capable of being coated with a highly durable coating by coating an olefinic resin molded product with a solution type primer layer-forming agent to form a primer layer and subsequently forming a coating layer on the surface of the primer. SOLUTION: This molded product is obtained by coating (B) a solvent type primer layer-forming agent containing a maleic anhydride-modified polyolefin as a main component on the surface of (A) a new or reclaimed olefinic resin molded product to form a primer layer, and subsequently coating the surface of the primer layer with (C) an acrylic resin coating to form a colored coating film. When the component C is coated on the surface of the component A not having polarity, the component B is used. The maleic anhydride-modified polyolefin as the main component of the component B is compatible with both the olefinic resin as the main component of the component A and the component C forming the outermost layer, and is integrated with both the olefinic resin and the component C after the evaporation of the solvent. Thereby, the tough coating film comprising the component C is formed on the component A.
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