Starts pumps and agitators. Turns valves to discharge blended materials from tanks into streams for coagulation. Pumps latex into blending tanks to obtain specified mixtures. Gauges tank or observes markings on side of tank to verify specified volumes of each type of latex. Observes dials and pumps specified amounts of additive materials into weigh tanks.
Discharges additives into blending tanks.
Takes samples of blends for laboratory testing. Records blend data in logs.