NinjaTek NinjaFlex TPU vs Polymaker PolyFlex TPU95
From the Polymaker PolyFlex TPU95 review: NinjaFlex is softer at 85A and more rubbery in the hand, but far fussier to feed. PolyFlex 95A prints on more machines and is the better first flexible filament.
| Spec | NinjaTek NinjaFlex TPU | Polymaker PolyFlex TPU95 |
|---|---|---|
| Overview | ||
| Material | TPU | TPU |
| Manufacturer | NinjaTek | Polymaker |
| Diameter | 1.75 mm | 1.75 mm |
| Thermal | ||
| Print temp | 225 to 235°C | 210 to 230°C |
| Bed temp | 20 to 40°C | 25 to 60°C |
| Warping | none | none |
| Quality | ||
| Layer adhesion | 5/5 | 5/5 |
| Bed adhesion | 4/5 | 5/5 |
| Stringing resistance | 2/5 | 3/5 |
| Verdict | ||
| Overall rating | 4.2/5 | 4.4/5 |
| Price / kg | — | — |
How they differ on the data
NinjaTek NinjaFlex TPU runs 10°C hotter on the nozzle (window midpoints 230°C and 220°C), and the two windows share 5°C of range, so one profile can cover both. Polymaker PolyFlex TPU95 lists the wider window (20°C against 10°C). Polymaker PolyFlex TPU95 runs 13°C hotter on the bed (window midpoints 30°C and 43°C), and the two windows share 15°C of range, so one profile can cover both. Polymaker PolyFlex TPU95 lists the wider window (35°C against 20°C).
NinjaTek NinjaFlex TPU ships on a 0.5 kg spool and Polymaker PolyFlex TPU95 on 0.75 kg, so compare price per kilogram rather than per spool.
Which one for the job
Pick NinjaTek NinjaFlex TPU for wearables, vibration damping.
Pick Polymaker PolyFlex TPU95 for flexible parts, phone cases.