Abstract: A process for obtaining precision castings of body parts wherein the body part is first immersed in a ice and water slush, immediately removed therefrom and immersed in a melted paraffin wax-water container, immediately removed therefrom and the body part extracted from the resulting wax mold. At least the interior surface of the hollow wax mold is coated with a casting material and permitted to cure at room temperature. The cured casting is heated by immersion in the wax-water container or in a separate heated water container for a period of at least ten minutes to remove the wax mold and recover a casting of the body part. The removed wax molding material may be recycled and employed in subsequent castings and recover a casting of the body part.