Which Filament

Materials › TPU

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TPU 85A

A softer, more rubbery TPU. Squishy and stretchy, but much harder to print than 95A.

Also called: soft tpu, 85a tpu, shore 85a, very soft tpu

Good for

  • Flexible / rubbery

Not great for

  • Fast / bulk printing
  • First-time friendly
  • Load-bearing / mechanical

Typical settings

Nozzle
210-235 °C
Bed
30-60 °C
Speed
10-25 mm/s
Cooling
50-100% part fan

You'll need

  • Direct-drive extruder (Bowden setups usually jam)
  • Dry filament

Ratings

Strength
2 out of 5
Heat resistance
2 out of 5
Flexibility
5 out of 5
Ease of printing
1 out of 5
Print speed
1 out of 5
Looks / finish
3 out of 5
Durability
4 out of 5

Ratings are relative, 1-5, for a typical filament of this type. Start from your filament maker's recommended settings.

Use it for

  • Soft seals, squishy toys, cushioning pads, and parts that must compress a lot.
  • If 95A is not flexible enough, 85A is the next step.

Watch out for

  • Much more likely to jam and tangle in the extruder than 95A.
  • Very slow printing. Expect to run well under 25 mm/s.
  • Soft, so it will not hold shape under real load.

Tips

  • Print with slow speeds and minimal retraction, and ease off the extruder tension so the soft filament is not crushed.
  • Try 95A first if you are new to TPU.

Sources

Figures vary by brand and test method; check your filament's datasheet.

Commonly printed in TPU 85A

Other TPU types

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