Plaster casting is a sculpting technique that involves creating a mold of an object using plaster. This mold can then be used to create multiple copies of the original object. Plaster casting has been used for centuries to create sculptures, decorative objects, and even architectural elements.
In printmaking, plaster casts are often used to create printing plates. The plaster is poured onto a flat surface and allowed to set. Once the plaster has hardened, it is carved or etched to create a design. The printing plate is then inked and pressed onto paper to create a print.