A professional who inspects viscous plastics material in plate glass molds (cells) and removes defects preparatory to curing. Respnsibilities include:

• Examines material through glass sheet to detect defects, such as air bubbles, dirt particles, and other foreign matter.
• Stands cell on end to elevate bubbles to surface and inserts spatula between molds to remove bubbles and foreign matter from edges.
• Inserts metal clip into mold, using spatula, and maneuvers clip, using magnet to remove defects from body of cell.
• May weigh cell on floor scale.