PURPOSE: To form an urethane paint film of good adhesive property only by means of primer process by forming the core part out of olefine series thermoplastic elastomer(TPE) and the surface layer part out of polyamide series TPE, and constituting the polyamide series TPE out of specific components.

CONSTITUTION: The core part 1a of a molding main body is formed out of olefine series thermoplastic elastomer(TPE), and the surface layer part 1b is formed out of polyamide series TPE. The polyamide series TPE is constituted of ethylenepropylene rubber to be a soft segment, polyamide to be a hard segment, and compatibilizer. The compatibilizer is ethylenepropylene rubber chemically modified out of any one sort of or over two sort of monomer among unsaturated epoxy monomer, unsaturated hydroxy monomer, unsaturated carboxylic acid, and multifunctional monomer containing one or more amino group.