TPU 90A is a thermoplastic elastomer based on polyurethane and is a thermoplastic variant of polyurethane rubber. TPU 90A is very similar in softness and dimensional stability to car tires. This material is perfect for prototypes of rubber parts or functional components where high demands are placed on abrasion resistance, durability and elasticity. By varying the thickness of the component, different softness can be achieved – 1 mm feels soft while 5 mm starts to become quite stiff.