Job Description:

• 1) Operates hydraulic press, equipped with steam or electrically heated platens, to cast rubber or plastic matrices and rubber dies or types: Turns dial to set electric thermostat or steam valves to maintain specified temperature in press.

• 2) Inserts chase containing type into press to heat type to specified temperature, or inserts engraved metal plate into press.

• 3) Places sheet of hard plastic or similar material on type and allows to heat for prescribed period of time.

• 4) Pulls lever to impress material into type form to make matrix.

• 5) Peels matrix from type, places rubber of plastic sheet on matrix and inserts it in press.

• 6) Places metal strips of specified thickness along sides of rubber or plastic and matrix to limit depth of pressing and determine thickness of die.

• 7) Repeats heating and casting process to produce rubber die.

• 8) Trims excess rubber from edges of designs, letters, symbols, and figures, using curved knife.

• 9) May mix casting compound and water to puttylike consistency, spread compound on mold plate, invert casting plate over type, press compound into type and dry compound in oven.

• 10) When making rubber dies or type, may be known as Vulcanizer, Rubber Plate.