Profile: Polytek Development Corp. produces versatile lines of liquid mold rubber, casting resin & specialty molding & casting compounds. Our product line includes urethane resin, urethane foam, epoxy plastic, alginate and wax. We offer rubber or plastic to spray, brush or pour for applications, such as ornamental concrete & plaster casting, architectural restoration, art & industrial foundry casting, rapid prototyping, special effects and prop production.