Release agent formulated especially for mold making and casting, it works well with most urethane liquid rubber and liquid plastic products. Will release mold rubbers from properly prepared models and also easily releases a variety of casting materials (epoxies, Smooth-On liquid plastics, etc...) from cured rubber molds. Properly used, Universal Mold Release improves molding efficiency for a variety of casting applications and will actually lengthen the life of production mold.