Thermoplastic polyurethane (TPU), Ultrasint™ TPU01

TPU (Thermoplastic Polyurethane)

HP Multi Jet Fusion [MJF]

Material info

About TPU (Thermoplastic Polyurethane)

TPU (MJF) is a high-performing thermoplastic polyurethane (TPU) powder, enabling the production of elastomeric functional parts with the advantages of additive manufacturing, obtaining similar performance as injection molding. The parts made from TPU (MJF) are flexible, tough, and provide high elongation and impact resistance for applications such as soft grip systems, footwear, seating and protective gear. It’s also well-suited for soft non-marring tooling, flexible tubing, wheels and ducts. Parts printed from TPU (MJF) are gray naturally, and black when dyed or smoothed.

Color & Finishes

Gray
Available in Natural Finish
Black
Available in Dyed and Smooth Finishes
Natural
This finish has a slightly rough surface and a matte finish.
Smooth
This finish has a smooth surface and slight shine, created using a physio-chemical process to vapor smooth the surface

Technology

  • HP Multi Jet Fusion [MJF]

Material Properties

Tensile Strength (DIN 53504, S2)
9 MPa (XY), 7 MPa (Z)
Tensile Modulus (ISO 527-2, 1A)
75 MPa (XY), 85 MPa (Z)
Elongation at Break (DIN 53504, S2)
220 % (XY), 120 % (Z)
Hardness Shore A (DIN ISO 7619-1)
88

Description

Application
Helmets and Protective Gear, Footwear and Wearables, Transportation Industry, Jigs & Fixtures
Properties
Good flexibility, shock absorption, high level detail
Certification
UL Flamability Rating [UL 94] HB 1.6 - 4.2mm, Passed skin sensitization and cytotoxicity tests as per ISO 10993-10 and ISO 10993-5
Biocompatibility
Passed skin sensitization and cytotoxicity tests as per ISO 10993-10 and ISO 10993-5

Design Guidelines

Bounding Box

Bounding Box Max
284 × 380 × 380mm

Bounding Box Min
1 × 1 × 19 mm
At least 1 extant dimension over 19 mm

The bounding box is a 3D imaginary outline of a box that encloses the smallest area occupied by your model. Your model must be within the minimum and maximum bounding box sizes. If the size of the model is close to the maximum bounding box, then the printing orientation will be restricted.

Walls

Supported Wall Thickness Min
1.0 mm
Unsupported Wall Thickness Min
1.0 mm
A supported wall is connected at least on two sides of the wall, while an unsupported wall is connected only on one side of the wall. Walls that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wall geometry of the model. Please consider the size of your model and reinforce the walls or add support structures as needed as minimum guidelines will not always be adequate for large models.

Wires

Supported Wires Min
1.0 mm
Unsupported Wires Min
1.0 mm
A wire is a circular, rectangular or even triangular feature that is thinner in its unconnected directions than its length. A supported wire is connected at least on two sides of the model, while an unsupported wire is connected on one side of the model. Wires that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wire geometry of the model. Please consider the size of your model and reinforce the wires or add support structures as needed as minimum guidelines will not always be adequate for large models.

Details

Details Min Embossed
1.0 mm
Details Min Engraved
1.0 mm
For text, the ratio between width and depth, should be 1:1 and sans-serif fonts are preferred for line weight consistency.

Escape Holes

Single Escape Hole Diameter (Min)
12.0 mm
Multiple Escape Hole Diameter (Min)
10.0 mm
Escape holes are necessary to empty the support material of a hollow model. Two escape holes at the opposite ends of the model is optimal for the support removal process. Please consider the size of your model and make the escape holes bigger or add more escape holes as needed as minimum guidelines will not always be adequate for large models.
A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.

Clearance

Min
0.8 mm
Clearance is the space between two individual parts in a model. If the space among the individual parts do not meet the minimum clearance, then parts can fuse together or can be difficult to clean. This is important for movable pieces like hinges, gears, etc.

Sprues

3 mm thick, attached in at least 2 places per part

Sprues are wires that keep two or more parts together. Parts should be connected with a minimum of two sprues each. Please consider the size of your sprues and increase them as needed as minimum guidelines will not always be adequate for large models. If the sprues are within the guidelines and are broken, but there is no damage to your model, we will still ship them as is.

Interlocking & Enclosed Parts

Interlocking
Yes (Natural)
No (Smooth)

Enclosed
Yes (Natural)
No (Smooth)

Parts in File

Max
Up to 250 parts accepted

Accuracy

Accuracy ± 0.5mm, then ± 0.2% of longest axis
For example: a product with dimensions of 50 x 50 x 100 mm can be 0.5 mm + 0.002 * 100 mm = 0.7 mm bigger or smaller in any direction.

Related Materials

Also known as HP Multi Jet Fusion PA12, Professional Plastic, HP Nylon Plastic, PA12, Polyamide
MJF Plastic PA12
Application: Mechanical & structural parts, mounts, cases, eye frames, tech accessories, drone parts, home decor, miniatures, art, prosthetics
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Also known as HP PA12 Glass Beads, PA12 GB, Glass-filled PA12, PA12 GF, Nylon 12 GB
MJF Plastic PA12 Glass Beads
Application: Tooling, Robotics, Drones, Fixtures, Medical Braces, Housings, Cases
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