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Polymaker PolyFlex TPU90 — print settings
Polymaker's recommended TPU settings, straight from the manufacturer. src C
Notes
Softer Shore 90A (elongation at break ~580%). TDS nozzle 210–230 °C, bed 25–60 °C, 30–60 mm/s, fan on. Direct-drive extruder recommended.
Dry 70 °C for 6 h only if the material has absorbed moisture.
Source: PolyFlex TPU90 TDS (mirror of Polymaker V4.2) src C · last verified 2026-06-10. Publishes detailed per-product TDS PDFs. Recommended settings are stated for a 0.4 mm nozzle (Simplify3D reference).
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About TPU
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.
- 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
More TPU brands and the full settings table: TPU settings →
FAQ
What temperature should I print Polymaker PolyFlex TPU90 at?
Polymaker recommends a nozzle temperature of 210–230 °C and a bed of 25–60 °C. A good starting point is about 220 °C nozzle / 40 °C bed; tune with a temperature tower. Source: Polymaker (2026-06-10).
Does Polymaker PolyFlex TPU90 need an enclosure?
No. Polymaker PolyFlex TPU90 prints fine on an open-frame printer.
Do I need to dry Polymaker PolyFlex TPU90?
Dry 70 °C for 6 h only if the material has absorbed moisture. Suggested drying: 70 °C for 6 h.