SLS / MJF · Powder polymers · Flexible
TPU / TPE (SLS / MJF)
Support-free flexible parts and lattices; insoles, gaskets, protection.
What is TPU / TPE (SLS / MJF)?
TPU printed in a powder bed allows far more complex flexible geometries than FDM TPU. Midsoles, protective pads and shock-absorbing lattice structures are typical applications.
- Flexible
- Chemical resistant
Technical data
Typical values compiled from common manufacturer datasheets; they vary by brand and grade.
| Hardness | ≈ 85A – 90A Shore |
|---|---|
| Tensile strength | ≈ 7 – 10 MPa |
| Elongation at break | ≈ 200 – 300% |
Design guidelines for TPU / TPE (SLS / MJF)
General guidelines for SLS technology. All design guidelines
- Minimum wall thickness0.7 – 1 mm
- Smallest detail0.5 mm
- Clearance for moving parts0.5 mm (moving parts)
- Text and logosEmbossed ≥ 1 mm
- Minimum hole diameterØ 1.5 mm
- Unsupported overhang angleUnlimited (no supports needed)
- Escape holeAt least two Ø 5 mm powder escape holes in hollow parts
Applications
- Lattice cushioning
- Gaskets and bumpers
- Protective equipment
Advantages
- Complex flexible geometry without supports
- High rebound
Limitations
- Slightly rough surface
- Limited color options
Comparison
TPU / TPE (SLS / MJF) and alternatives
| Property | TPU / TPE (SLS / MJF) | TPU 95A | Flexible / elastic resin | Rubber-like photopolymer |
|---|---|---|---|---|
| Density | 1.1 g/cm³ | 1.21 g/cm³ | 1.1 g/cm³ | 1.15 g/cm³ |
| Tensile strength | 9 MPa | 35 MPa | 6 MPa | 3 MPa |
| Elongation at break | 280 % | 800 % | 130 % | 240 % |
| Modulus (stiffness) | 0.08 GPa | — | 0.01 GPa | 0.01 GPa |
| Heat deflection (0.45 MPa) | — | — | — | — |
Values are averages of typical ranges; see each material page for details.
Good to know
Frequently asked questions about TPU / TPE (SLS / MJF)
What is TPU / TPE (SLS / MJF)?
TPU printed in a powder bed allows far more complex flexible geometries than FDM TPU. Midsoles, protective pads and shock-absorbing lattice structures are typical applications.
Is TPU / TPE (SLS / MJF) heat resistant?
The heat deflection value of TPU / TPE (SLS / MJF) varies by grade and application; for parts working in hot environments, you can consult our engineers.
Can TPU / TPE (SLS / MJF) be used outdoors?
It usually performs well in short and medium-term outdoor use; for parts exposed to direct sunlight for long periods, UV-resistant materials such as ASA are a better fit.
Which parts are made with TPU / TPE (SLS / MJF)?
TPU / TPE (SLS / MJF) is typically used in applications such as lattice cushioning, gaskets and bumpers, protective equipment.
Which material can be used instead of TPU / TPE (SLS / MJF)?
Depending on the application, TPU 95A, Flexible / elastic resin, Rubber-like photopolymer can be alternatives. You can see the differences in the comparison tables on the material pages.
Does TAİ Robotik produce with TPU / TPE (SLS / MJF)?
For TPU / TPE (SLS / MJF), send us your part's dimensions, quantity and operating conditions; we will determine the best production route and, if needed, an equivalent alternative together.
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