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TPU print settings Thermoplastic Polyurethane
Flexible, rubber-like filament for gaskets, phone cases, and dampers. Sold by Shore hardness (95A is firm-flexible, 85–90A is softer). Prints slow and best on a direct-drive extruder; Bowden setups struggle. Moisture-sensitive. Patience over speed is the rule.
TPU settings by brand
| Filament | Material | Nozzle | Bed | Max speed | Enclosure | Source |
|---|---|---|---|---|---|---|
| Polymaker PolyFlex TPU95Polymaker | TPU | 210–230 °C | 25–60 °C | ≤ 40 | Not needed | src Achecked 2026-06-10 |
| Polymaker PolyFlex TPU90Polymaker | TPU | 210–230 °C | 25–60 °C | ≤ 60 | Not needed | src Cchecked 2026-06-10 |
Click any filament for the full spec sheet and source link. “n/p” = not published by the manufacturer.
What TPU is good (and bad) for
- Gaskets, seals, vibration dampers
- Phone cases and grips
- Flexible hinges and bumpers
- Wearables
- High-speed printing
- Bowden extruders (soft grades especially)
- Sharp detail and tall thin features
Drying & storage
TPU is quite hygroscopic; wet TPU bubbles and strings. Dry 65–70 °C for 6–8 h and print soon after, ideally from a dry box.
Bed adhesion
Adheres to PEI/glass at a low/no bed temp. The real requirement is mechanical: a direct-drive extruder and slow, steady flow to avoid jams.
Heat resistance
Varies by grade; generally modest. Chosen for flexibility, not heat resistance.
Compare TPU with other materials
TPU FAQ
What temperature do you print TPU at?
Across the 2 TPU filaments in this database, manufacturers recommend nozzle temperatures of 210–230 °C and bed temperatures of 25–60 °C. Exact values are per-brand (see the table); always run a temperature tower on a new spool.
Does TPU need an enclosure?
No. TPU prints fine without an enclosure.
How do you dry TPU?
TPU is quite hygroscopic; wet TPU bubbles and strings. Dry 65–70 °C for 6–8 h and print soon after, ideally from a dry box.
How heat-resistant is TPU?
Varies by grade; generally modest. Chosen for flexibility, not heat resistance.