As the name implies, Thermoplastic polyurethane (TPU) are essentially plastics with rubber-like qualities, making them extremely flexible and durable. As such, TPU is commonly found in automotive parts, household appliances, and medical supplies. It’s also a little more durable and can better retain its elasticity in the cold. Its Hardness is 92 Use TPU when creating objects that need to take a lot of wear. If your print should bend, stretch, or compress, these are the right 3D printer filaments for the job. Example prints might include toys, phone cases,tough parts or wearables (like wristbands).