- Extruder Temperature: 370°-390°C
- Bed Temperature: 120°-160°C
- Enclosure Temperature: Ultem prints best in a warm to hot environment
3DXTech's Ultem PEI (Polyether Imide) materials are a high-performance, amorphous polymer that has outstanding dimensional stability, excellent thermal properties, great chemical resistance, and inherent flame retardancy. Ultem 3D printing materials require extremely high extruder and bed temperatures to print successfully, but they will stand up to anything you can throw at them.