A professional who operates machines to dry hypalon or neoprene rubber solution to form film, to shape film into rope, and to cut rope into chips. Respnsibilities include:

• Moves controls on panel to start rotating drum drier, pumps, and blowers, and to adjust speeds of roper machine and drier.
• Observes meters and gauges to verify pressures and temperatures of machines.
• Moves dials on automatic instruments to set and adjust level of rubber solution in drier and flow of steam through drier.
• Turns valves to regulate flow of cooling water and temperature in cooling drum.
• Threads film of rubber from drier through guiding rolls and slots of roper and through automatic cutting machine.
• Keeps production and storage records.
• Gives directions to workers in cleaning equipment, weighing, stenciling, and storing articles, filling roper chamber with talc, and in packing finished rubber chips into bags or drums.