Why They Call It A “Mother Mold”
Oh, we are racing against the temperature. 97 degrees in the warehouse! This temperature is when it is less than 90 outside. Usually the warehouse is 7 degrees higher than the outside temperature. We have moved most of the tiger appendages to the home studio, and do this late at night or early morning when possible. The clay gets very soft in the heat. We will work on the appendages later. For now, we continue with this massive tiger torso.
We now need to make a mother mold of the Grambling State Tiger. A mother mold is called that because it holds the rubber in place. Mother molds can be made of a variety of materials, but we are doing these mother molds in fiberglass.
I choose fiberglass because it is lighter. The foundry that is casting this tiger is Shidoni in NM. They work on monuments all of the time. They need larger mold pieces. This is good because it makes our mold making job a little easier. But the mother molds often make the mold sections heavy, plus I will be shipping these mold pieces to New Mexico for casting so we are looking for convenience. Fiberglass mother molds win over a plaster mother mold.
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