Behind every rubber material is a story of discovery that led to its widespread use in the modern world. Today, we’re taking a closer look at polyurethane rubber, which was first invented by Professor. Dr. Otto Bayer in Germany, 1937. The chemical fabrication led to the further development of materials such as polyurethane foam, sponge, insulation, seals, gaskets, wheels, tires, suspension bushes, adhesives, clothing materials (spandex), surface coatings and more. With an impressive accolade of applications, what exactly makes this rubber so unique?