A guide to thermoplastic polyurethanes (TPU) ® HUNTSMAN A Guide to TPU page 1. What is thermoplastic polyurethane (TPU)? 4 2. TPU chemistry 6 3. TPU from Huntsman 8 4. Physical properties 10 ... 2,0 1,5 1,0 0,5 0 Hardness 70 Shore A Hardness 95 Shore A Hardness 74 Shore D Tear strength