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Lesson Two: Tools and Materials


Cast

To make a cast, the pieces of the mold are all bolted together.

Parting wax is applied to the inside of each section of the mold, which, once hardened is painted with a water-soluble, poly-vinyl alcohol, so that the cast will not stick to the mold.

Next the inside of the mold is covered with fiberglass and a mixture of resin and catalyst.

When the cast has cured, the mold is removed, and the seams ground off, the cast duplicates the forms originally made in clay.

Jiménez made the eagle as a separate, removable trapdoor. The sculpture can be bolted securely to its pedestal from the inside before the eagle is bolted into place.


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