Job Description:

• 1) Casts plaster patterns used in shaping plastic or plastic-impregnated materials: Brushes inside of mold sections with lubricant, and bolts sections together.

• 2) Mixes specified amounts of plaster and water in mixing machine.

• 3) Pours plaster into mold and positions mold in machine that rolls mold to distribute mixture evenly and facilitate drying.

• 4) Repeats operation, after each layer of plaster has set, to build casting to specified thickness.

• 5) Removes bolts from mold and pries sections apart, using bar.

• 6) Removes fins and flanges from pattern, using scraper.

• 7) Fills bubble holes and smooths uneven surfaces with wet plaster.

• 8) Places pattern in drying room to cure.

• 9) May coat pattern with sealing lacquer.