Film examining various techniques for joining plastic parts. Methods highlighted include spin welding, self-tapping screws, snap fits, press fits, hot plate welding, molded-in threads, and ultrasonic welding. Presented by the DuPont Plastics Department.
Kirkland describes his career working with the spray welding devices, including a detailed description of the function of the machine and the origins of the parts. He also briefly describes his working career, including business practices of the company.