is everything made up of liquids like molds or casts?

Question:

Answer: Molds are usually made from Latex, Urethanes or Silicones. Depending on the size of the sculpture you may need a "mother mold" to hold the flexible mold in place while you cast the sculpture. Sculptures can be cast in wax (for lost wax bronze casting), plastic resins, and plaster or hydrocal. All urethane molds require a mold release to make sure you ca get the plastic cast out of the mold. These are all 2 part liquids that are mixed just before using

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