a process for manufacturing a weather strip comprising the steps of setting an end portion of an extruded portion in a mold cavity , injecting a semi - rigid resin material into the cavity to form an attachment portion of a molded portion to integrally connect the attachment portion of the molded portion to an attachment portion of the extruded portion , and injecting thereafter a soft or sponge thermoplastic elastomer material into the cavity to form a sealing portion of the molded portion to integrally connect the sealing portion of the molded portion to a sealing portion of the extruded portion .