TPU (BASF Ultrasint TPU01)

Flexible, functional, rubber-like parts

Rubber 3D printing service

TPU (Thermoplastic Polyurethane) is a rubber-like polymer which is ideal for producing parts that require high elasticity, shock absorption, elasticity and energy return. This material is 3D printed with HP Multi Jet Fusion technology, which produces durable, strong and consistent parts with excellent surface quality and high level of detail.
Minimum lead time

10 business days

3D printing technology
Dimensional accuracy

+/- 0.3% with a lower limit of +/- 0.3 mm

Maximum build size

380 x 285 x 380 mm (14.9" x 11.2" x 14.9")

BASF Untrasint TPU (Thermoplastic Polyurethane) 3D printed with HP Multi Jet Fusion
Ordering information

Instant quoting is not available for this material at this time. To request pricing and make an order, please submit a manual quote or contact us for more information.

TPU: a rubber like polymer for robust, detailed, flexible parts

Ultrasint TPU01 is a versatile thermoplastic polyurethane which has rubber-like elasticity and is designed to produce strong, flexible, durable parts for applications requiring high elasticity, shock absorption, and energy return. This material offers a balanced property profile and the ability to print very fine structures with a high level of detail, and is designed for jigs & fixtures, footwear, industrial tubes and pipes, transportation Industry, and sports and leisure.

 

TPU exhibits good UV and hydrolysis resistance It also has good UV and hydrolysis resistance. It passes skin sensitisation and cytotoxicity tests in accordance with ISO 10993-10 and ISO 10993-5, making it suitable for applications close to the human skin, such as in the medical industry.

TPU parts are developed by BASF and 3D printed with HP Multi Jet Fusion (MJF) technology. Because MJF is a powder-bed fusion technology parts can be used immediately out of the printer, or can be dyed black and treated for a smoother, customer-facing finish.

Key Benefits

  • Functional parts with fine detail and dimensional accuracy.

  • Enhanced rebound resilience and elongation-at-break with lighter parts

  • Optimal mechanical resistance at low temperatures

  • Good UV and hydrolysis resistance

  • Flexible lattices

  • Complex parts

Applications

  • Flexible lattice structures

  • Sports equipment such as helmets, footwear, or safety gear.

  • Automotive use, including car interiors, air filter covers, or bellows gimbal

  • Industrial tools such as robotics or grippers

  • Custom shock absorbers and springs

  • Fluid systems such as flexible pipes

  • Medical equipment such as face masks or orthopedics.

Design guidelines​

Min wall thickness

0.5 mm

Recommended wall thickness

2.0 mm

Max wall thickness

7.0 mm

Min hole diameter at 1 mm thickness

0.5 mm

Min shaft diameter at 10 mm high

0.5 mm

Min clearance at 1 mm depth

0.5 mm

Min slit between walls 1 m thick

0.5 mm

Min deboss depth

1 mm

Min emboss height

1 mm

Design considerations​

  • The best results are obtained with thin structures and lattices, so it is recommended to re-design dense parts by hollowing them, introducing internal lattices, and/or removing unnecessary material. This strategy also reduces the weight of the parts and lowers the cost of production.​

 

View full design guidelines for HP TPU01

Technical Specifications

Accuracy

+/- 0.3% (minimum of +/- 0.3 mm)

Hardness (shore A)

88

Tensile modulus 

75 MPa (xy) / 85 MPa (z)  

Tensile strength

9 MPa (xy), 7 MPa (z)

Rebound resistance

63% 

Elongation at break

>220% 

Tear resistance (Trouser)

20 KN/m (xy), 16 KN/m (z) 

Tear resistance (Graves)

36 KN/m (xy), 32 KN/m (z) 

Compression set

20%  

Abrasion loss

90 mm3

Available finishes

Ultrasint TPU01 Thermoplastic Polyurethane raw finish
Raw (gray)

After the part has been printed and has been cleaned it has a powdery gray look and feel. This finish is best suited for functional prototypes and non-visible parts.

Ultrasint TPU01 Thermoplastic Polyurethane black dye
Black Dye

Parts are submerged in a hot dye bath containing dye pigment. This gives a smooth, consistent finish with no loss of dimensional accuracy.

Ultrasint TPU01 Thermoplastic Polyurethane black dye and chemical smoothing
Chemical Vapor Smoothing

This process uses a chemical vapor that smooths the surface of the part, giving a look and feel comparable to injection molding. Best for consumer-facing parts.

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How does TPU compare to other flexible 3D printed materials?

There are a variety of flexible materials available for 3D printing, but the most popular for industrial use are TPU and TPE. TPU (Thermoplastic Polyurethane) is actually a subset of TPE (Thermoplastic Elastomer), and both are known for their elasicity, processability, recyclability, high melting temperature and resistance to weathering. 

TPE is softer than TPU, with a shore hardness 40A to 70A. TPE has moderate abrasion, chemical and thermal resistance. It is popular for applications that are soft to touch and provide good elastic or non-slip properties, such as hockey stick grips, toys, medical parts, tubing and seals. 

Compared to TPE, TPU has a higher shore hardness, abrasion, chemical and thermal resistance. These factors  make it popular for final-part production such as sports equipment, footwear, car interior components or tool manufacturing. If a softer part is needed this material can be printed with thinner walls and lattice structure.

 

In 3D printing applications, TPU printed with HP Multi Jet Fusion (MJF) technology is a good choice for low-to-mid-volume manufacturing because this technlogy produces affordable, high quality parts up to 10x faster than comparable 3D printing technologies. 

Get your parts into production today