Masonite boards are cut to size and placed on both halves of the two part mold which has been reassembled. Rubber bands hold the mold snugly in place. Using rigid boards on the outside of the mold insures that the rubber bands do not distort the rubber mold, which would cause the parts to cast incorrectly. High-quality resin is now mixed with porcelain or glass powder to fill the mold and replicate the part that it was made around.

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