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Powder (SLS)

TPU (SLS) 3D printing

Sintered TPU (SLS) gives flexible, durable parts without supports, for gaskets and elastic components. We offer SLS printing in TPU, quoted job by job.

Price band
€€€
1 variantData checked on 13 November 2026
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What it is for

TPU in SLS is used for flexible parts with complex geometry: gaskets, bellows, sleeves, dampers, padding and lattice structures that absorb impacts, grips and guards. Without supports you get cavities, channels and lattices that flexible filament does not allow.

The surface is matt and slightly rough, and parts are weaker in the build direction: the data sheet reports a tensile strength of 7 MPa in X/Y and 5 MPa in Z. Do not choose it for pressure seals without a trial. For simple parts with higher tensile strength there is filament TPU; for batches consider TPU in MJF.

Variants compared

TPU (SLS): properties of the variants from the makers' data sheets, one column per variant
PropertyTPU (SLS)Quote
Mechanical
Tensile strengthXY7 MPastandard not stated on the sheet5 MPa Z
Tensile modulus60 MPastandard not stated on the sheet
Elongation at breakXY250%standard not stated on the sheet90% Z
Shore hardness86 Shore Astandard not stated on the sheet
Thermal
Melting point (Tm)138 °Cstandard not stated on the sheet
Vicat softening temperatureASTM D152594.3 °C
Physical
Density1.11 g/cm³standard not stated on the sheet
Water absorptionASTM D570, printed part0.89%
Source
  • Supplier's data sheetread on 13 November 2026
  • Powder maker's data sheet, Rev. 01 14/03/2023, PDFread on 13 November 2026

Typical values from the makers' data sheets, measured on specimens under the conditions stated. They are not guaranteed design values: for a critical application ask us for a test on your part.

Design limits

Build volume
330 × 330 × 565 mm
Minimum feature
0.5 mm
Dimensional tolerance
±0.3% (minimum ±0.3 mm)

These are the limits of the process, the same for every variant unless stated. For critical dimensions, talk to us before printing.

Which variant to choose

In SLS we offer a TPU of 86 Shore A. Choose filament TPU for simple parts with higher tensile strength; TPU in MJF for larger runs.

Data sheets

  • Supplier's data sheetread on 13 November 2026

    Columns: TPU (SLS)

  • Powder maker's data sheet, Rev. 01 14/03/2023, PDFread on 13 November 2026

    Columns: TPU (SLS)

FAQ

Frequently asked questions

The data sheet reports a hardness of 86 Shore A and an elongation at break of 250% in X/Y and 90% in Z. How much the part actually yields depends a great deal on geometry: thin walls and lattice structures make it softer than the solid material.

Filament gives parts with higher tensile strength and a smoother surface, but needs supports and limits the geometry. SLS has no supports: it allows lattices, cavities and undercuts, with lower properties in the build direction. For a flat gasket filament is enough; for a lattice damper you need powder.

TPU is used in contact with oils and greases and resists abrasion well. Sintered parts are slightly porous: they can take up fluids and dirt at the surface. If the part works with a specific fluid or has to seal, state it in your request.

Do you have a part to print in TPU (SLS)?

Upload the CAD file: we reply within 1 working day with a quote and a recommended material.

Request a quote