Demonstration of expanding three dimensionally molded parts.Manufactured by Industrial Polymers Corporation USA. www.industrialpolymers.com 713-943-8451 800-766-3832. Direct USA manufacturer of a complete line of flexible mold making rubbers and rigid casting resins and shrinking and expanding resins. Used for enlarging bronze molds, theming, special effects, jewelry, toys and movie props. Visit our web site or call us to place an order. Learn more at www.industrialpolymers.com/pr...