Job Description:

• 1) Makes clay cores around which ferrous and nonferrous pipe is cast: Clamps rod in bench vises so that it can be rotated.

• 2) Wraps rod with paper, straw, or jute, tying it firmly in place with twine.

• 3) Mixes mud, sand, and loam to form clay.

• 4) Spreads clay over wrapping, adding molasses to make mixture cohesive and working coating by hand so that it is smooth and even.

• 5) Spreads core blacking over core and places it in drying oven for specified time.

• 6) Removes dried core and applies second coating to bring core to specified diameter.

• 7) Spreads blacking on core and returns it to oven for final drying.