A professional who tends equipment to mix specified amounts of liquid and powdered ingredients, such as oils, solvents, lead salts, and resins, with paint products, such as paint pigment and paste, varnish, and stain, to thin products. Respnsibilities include:

• Weighs ingredients, using scales, and dumps into mixer.
• Turns valves on storage tanks to admit specified liquids into mixer, and starts power agitator to blend ingredients.
• Starts pump to transfer batch to storage tank or clarifying machine.
• Writes identifying code on tanks and records quantities and types of ingredients added to batch.
• May be designated according to mixture thinned as Bulk-Pigment Reducer (paint & varnish); Paste Thinner (paint & varnish); Stain Maker (paint & varnish); Varnish Thinner (paint & varnish).