The wall is begun that will separate the back half of the head into two parts. A close-up of the completed dam. Now a wall will be constructed to hold the silicone in place. When it cures, the wall and dam are removed, the silicone is cleaned and a release agent applied. Then a final wall is constructed and the final piece of the mold is poured, encasing the head completely in rubber that disassembles to allow the part inside of it to be removed.

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