A professional who tends tumbling barrel-painting machine that coats articles of porous materials, such as wooden shoe tree turnings or toy parts, with coating materials, such as paint, varnish, or lacquer. Respnsibilities include:

• Places parts into tumbling barrel.
• Mixes coating material and thinner as specified and pours over parts in barrel.
• Starts barrel rotating to impart coating material on articles while heated air is blown through barrel to dry articles.
• Stops rotation of barrel, examines articles for uniformity of coating, adds more paint as required, and restarts rotation.
• Unloads barrel, breaking apart any articles that are stuck together.