Thermoplastic Polyurethane [TPU]

Material Info

About

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

• Multi Jet Fusion [MJF]
  TDS TPU (MJF)
  TPU(MJF) - Product Information - Skin contact

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

Applications: 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

Maximum Bounding Box: 284 × 380 × 380mm
Minimum Bounding Box: 1 × 1 × 19 mm
At least 1 extant dimension over 19 mm

Walls

Supported Walls: 1.0 mm
Unsupported Walls: 1.0 mm
Walls that do not meet the minimum requirements may not survive printing and cleaning processes.

Wires

Supported Wires: 1.0 mm
Unsupported Wires: 1.0 mm
Wires that do not meet the minimum requirements may not survive printing and cleaning processes.

Details

Embossed Details: 1.0 mm
Engraved Details: 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: 12.0 mm
Multiple Escape Hole Diameter: 10.0 mm
Escape holes are necessary to empty the support material of a hollow model.

Clearance

Minimum: 0.8 mm
Clearance is the space between two individual parts in a model.

Sprues

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

Interlocking & Enclosed Parts

Interlocking: Yes (Natural)
Enclosed: Yes (Natural)

Parts in File

Up to 250 parts accepted.

Accuracy

± 0.5mm, then ± 0.2% of the longest axis.

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