PURPOSE: To inexpensively produce a rubber molded product having a double- coated tape provided thereto by a small-scale apparatus reduced in the number of processes.

CONSTITUTION: In bonding a double-coated tape to a vulcanized extrusion molded product 10 composed of vulcanized rubber such as an EPDM material, the vulcanized extrusion molded product 10 is drawn out of a vulcanizing tank 31 and the double-coated tape 2 is bonded to the surface of the vulcanized extrusion molded product 10 in a hot state under pressure and the whole is cooled. The temp. of the hot state of the double-coated tape at the time of press bonding is 120-200°C. The press bonding of the double-coated tape 2 to the vulcanized extrusion molded product is performed by press bonding rolls 33. For example, the double-coated tape is a laminate consisting of a main body composed of a foam material such as acrylic resin foam, the hot-melt adhesive provided to the rear surface thereof, the self-adhesive material provided to the surface thereof and the liner provided to the surface of the self-adhesive material.