TPU
Thermoplastic polyurethane (TPU) is a very common form of elastic polymer, also known as elastomer, which can be printed on FDM and SLS 3D printers. Of the many types of flexible filaments for 3D printing, TPU is somewhat stiffer, which makes its manufacturing and use easier. Note: Flexibility in FDM printing varies depending on the amount of infill.
Usage / Features
FDM TPU has a hardness range of Shore 80A-95A, making it a medium-strength and highly flexible material. It withstands higher compressive and tensile forces compared to more common materials like PLA and ABS. It excels in elasticity and durability, making it ideal for applications requiring resistance. TPU is also exceptionally resistant to mechanical wear and impact, making it perfect for protective covers, bumpers, and other durable parts.
Advantages
Flexibility
Flexibility
Wear resistance
Impact resistance
Strength
Disadvantages
Lower thermal resistance
Lower thermal resistance
Limitations with complex geometries
Technical Specifications
Tensile strength
26 - 55 MPa
Tensile modulus
9.4 - 26 MPa
Elongation at break
330 - 657%
Flexural modulus
72 - 78.7 MPa
HDT (at 0.45 MPa)
40 - 50°C
Examples
