TPU (Thermoplastic Polyurethane) is one of the most-used 3D printing materials. In plain terms: shock-absorbing flexibility with spring-back resilience.
VOXFIL TPU (95A) is a flexible filament that absorbs shocks, grips surfaces and springs back every time. From phone cases to vibration dampers, robot wheels to seals — if the part must flex, TPU is the answer. Print slow for perfect results.
Key properties of TPU
| Filament diameter | 1.75 mm ±0.02 |
|---|---|
| Density | 1.21 g/cm³ |
| Shore hardness | 95A |
| Nozzle temperature | 220 – 250 °C |
| Bed temperature | 40 – 60 °C |
| Print speed | 15 – 40 mm/s (direct drive) |
| Cooling fan | Low (20 – 40%) |
| Tensile strength | 38 MPa |
| Elongation at break | ≈450 % (stretchy) |
| Drying | Recommended — dry 4 h @ 70 °C |
| Glass transition (Tg) | -40 °C |
| Flexural modulus | 0.3 GPa (flexible) |
| Recommended nozzle | Brass (standard) |
| Storage | Dry box recommended, below 40% RH |
How to print TPU
- Nozzle: 220 – 250 °C (235 °C sweet spot)
- Bed: 40 – 60 °C
- Speed: 15 – 40 mm/s, direct-drive extruder best
- Slow down for sharp corners to avoid blobs
Best applications for TPU
- Phone cases & wearables
- Vibration dampers & gaskets
- Robot & RC wheels
- Seals and strain reliefs
- Protective bumpers
Best for: Flexible, shock-absorbing parts with high abrasion resistance.
Buying TPU in volume? VOXFIL supplies TPU filament with batch QC reports and factory-direct pricing — and our engineers are happy to advise on your application.