Definitions for "MOTHER MOLD"
This is a plaster shell or mold constructed around a rubber inner mold or used as a backing for support of flexible materials. Rubber molds are generally stored in the mother mold.
This mold is taken from the clay mold and is made with superfine plaster to allow fine details to be impressed into it.
Outer, often rough mold made of the back of a mold. Used to secure the mold during the casting process when it is made of fragile or flexible material.