an apparatus and method for bonding polymeric materials is provided . the apparatus and method both utilize ferromagnetic materials in association with the polymeric materials to be bonded together . the polymeric materials , and the ferromagnetic material , are placed within a magnetic field , which causes hysteresis losses in the ferromagnetic field , and thus elevation in the temperature of both the ferromagnetic material and the polymeric materials to the point where the polymeric materials melt and fuse together . the ferromagnetic materials only rise in temperature to their curie temperatures , at which point the hysteresis losses cease , and the polymeric material stops being heated . removing the electromagnetic field allows for cooling and fusing .