A professional who tends machine that mixes binder fluid used in production of fiberglass sliver or mats. Respnsibilities include:

• Weighs and measures ingredients according to formula and pours or dumps ingredients into mixing vats.
• Turns valve to start flow of water and steam into vats and starts portable or power mixer to agitate ingredients for specified time.
• Observes temperature charts and thermometers to determine if specified temperature is maintained.
• Turns valve to increase flow of steam or water to regulate temperature of mixture or notifies supervisor of excessive temperatures.
• Dips beaker into vat to obtain sample of binder fluid and delivers sample to testing room.
• Obtains test results and adds ingredients according to instructions or turns valve to start flow of binder fluid into specified circulatory tank.
• Cleans mixing vats, mixers, and other equipment, using water and cloths.
• Records number of batches mixed, ingredients used, gallons mixed, gallons lost, and net gallons mixed for inventory and production records.