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Powder (SLS)

Nylon PA12 (SLS) 3D printing

Sintered PA12 nylon (SLS) gives strong functional parts without supports, suited to short runs and spare parts. We offer SLS printing in PA12, quoted job by job.

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

PA12 in SLS is used for functional parts and short runs: enclosures, ducts, brackets, clips and integrated hinges, spare parts, assemblies that come out of the build already put together. The powder supports the part while it is built, so no supports are needed: internal channels, undercuts and geometries that filament cannot produce are possible.

The surface is slightly rough and porous: do not choose it for transparent, mirror-smooth or leak-tight parts without a treatment. For finer surfaces and minute detail there is resin printing, for instance with the Tough resins; for larger runs, nylon in MJF; for stiffness and heat, a carbon-fiber nylon.

Variants compared

Nylon PA12 (SLS): properties of the variants from the makers' data sheets, one column per variant
PropertyPA12 (SLS)Quote
Mechanical
Tensile strengthASTM D638, orientation not stated, conditioned 7 days at 23 °C and 50% RH50 MPa
Tensile modulusASTM D638, orientation not stated, conditioned 7 days at 23 °C and 50% RH1,850 MPa
Elongation at breakASTM D638, XY, conditioned 7 days at 23 °C and 50% RH11%6% Z, conditioned 7 days at 23 °C and 50% RH
Flexural strengthASTM D790-15, conditioned 7 days at 23 °C and 50% RH66 MPa
Flexural modulusASTM D790-15, conditioned 7 days at 23 °C and 50% RH1,600 MPa
Izod impact, notchedASTM D256-10, conditioned 7 days at 23 °C and 50% RH32 J/m
Thermal
Heat deflection temperature (HDT) at 0.45 MPaASTM D648, conditioned 7 days at 23 °C and 50% RH171 °C
Heat deflection temperature (HDT) at 1.8 MPaASTM D648, conditioned 7 days at 23 °C and 50% RH87 °C
Vicat softening temperatureASTM D1525, conditioned 7 days at 23 °C and 50% RH175 °C
Physical
Density0.93 g/cm³standard not stated on the sheet
Water absorptionASTM D570, printed part0.66%
Fire behavior
Flammability ratingUL 94HB at 3 mm
Source
  • Powder maker's data sheet, Rev. 01 19/08/2020, PDFread on 13 November 2026
  • Supplier's data sheetread 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 PA12. Choose MJF for larger batches or if you need PA11, which is more ductile; TPU in SLS if the part has to be flexible; filament nylon for large one-off parts or for carbon fiber.

Data sheets

  • Powder maker's data sheet, Rev. 01 19/08/2020, PDFread on 13 November 2026

    Columns: PA12 (SLS)

  • Supplier's data sheetread on 13 November 2026

    Columns: PA12 (SLS)

FAQ

Frequently asked questions

Both build parts from PA12 powder without supports and give functional parts with similar properties. MJF is suited to batches; SLS to one-off parts and short runs. State quantities and requirements in your request: those are the data that decide between the two processes.

The data sheet reports a heat deflection temperature of 171 °C at 0.45 MPa and 87 °C at 1.8 MPa (ASTM D648), on parts conditioned for seven days at 50% relative humidity and 23 °C. Under load the useful temperature is therefore much lower than under a light load.

Sintered PA12 absorbs little water (0.66% according to the data sheet, ASTM D570), but the surface is slightly porous: thin walls can weep under pressure. Tanks and pressurized ducts need adequate walls or a sealing treatment. State the fluid and the pressure in your request.

The data sheet reports a tensile strength of 50 MPa, a modulus of 1850 MPa and an elongation at break of 11% in XY and 6% in Z (ASTM D638), on conditioned parts. The part is therefore less ductile in the build direction: allow for it in clips and hinges.

Do you have a part to print in Nylon PA12 (SLS)?

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

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