Estane® is a thermoplastic polyurethane (TPU) that is tough, durable, flexible and offers a broad range of hardnesses. It has excellent low temperature flexibility. It can be colored.

Thermoplastic polyurethanes allow for very thin gauges while maintaining strength and properties. They can withstand as much as four times the radiation that other plastics than withstand and have better burst strength.


Property Measure Low Measure High
Specific gravity 0.0426 lb./in.3 (1.18 g/cc) 0.0441 lb./in.3 (1.22 g/cc)
Melting point 392°F (200°C) 392°F (200°C)
Glass transition temperature -26°F (-32°C) 27°F (-2.78°C)
Tensile strength at break 4600 psi (31.7 MPa) 8000 psi (55.2 MPa)
Elongation at break 450% 780%
Hardness durometer (Shore A) 75 93
Hardness durometer (Shore D) 45 47
Water absorption @ 24 hours Not Available Not Available
Sterilization Gamma radiation

This material data sheet is presented for reference only. For a specific application and environment, characteristics and performance may vary. Product design and suitability for use are the sole responsibility of Microspec’s customer. Microspec strongly urges customers to consult with the material manufacturer.