Cast urethane Services Cast urethane starts with a Silicone Rubber Mold (SRM) produced through 3D printing. This mold, referred to as the master model, is then filled with two separate urethane liquids that, when mixed, cause a chemical reaction that turns them from a liquid to a solid. Once the newly formed part is properly cured, it is removed from the mold and completed. Visit here for more details: https://quickparts.com/gb/cast-urethane-services/