What is TPU?

Thermoplastic Polyurethane (TPU) belongs to the family of thermoplastic elastomers and combines the best properties of thermoplastics and rubbers (thermosets).

You may be more familiar with the term TPE — or ThermoPlastic Elastomer. Formerly the go-to material for flexible 3D printing, TPE is a very soft, rubber-like plastic that can be bent or stretched without deformation. However, its softness makes TPE a very challenging material for machine extruders to 3D print.