aerospace polymer. 217°C HDT, fire-retardant, biocompatible. requires a €25k+ printer.
When fire-retardancy + heat + medical sterilizability are all required. Aerospace cabin parts, medical instruments, semiconductor cleanroom parts. Slightly less scary than PEEK (lower melt temperature).
| Formula | (C₃₇H₂₄O₆N₂)ₙ |
|---|---|
| Density | 1.27 g/cm³ |
| Tg (glass transition) | 217°C |
| Nozzle temp | 370–410°C |
| Bed temp | 150–180°C |
| Enclosure | required, 100°C |
| Difficulty | ★★★★★: expert |
Engineer, author of The Big Book of 3D Printing and additive manufacturing expert
| Formula | (C₃₇H₂₄O₆N₂)ₙ |
|---|---|
| Density (g/cm³) | 1.27 |
| Tg (°C) | 217 |
| Print ease (0-10) | 1 |
| Tensile (0-10) | 9 |
| Flexibility (0-10) | 4 |
| Impact resistance (0-10) | 8 |
| Heat resistance (0-10) | 10 |
| UV resistance (0-10) | 8 |
| Chemical resistance (0-10) | 9 |
| Cost (0-10) | 1 |
| Safety (0-10) | 9 |
| Finishing (0-10) | 7 |
| Bed adhesion (0-10) | 5 |
| Accuracy (0-10) | 8 |
| Nozzle temperature (EduFacturing library) | 350-390 °C |
|---|---|
| Bed temperature (EduFacturing library) | 130-160 °C |
| Property | PEI / Ultem | ABS | ASA | CF-Filled (PLA/PETG) |
|---|---|---|---|---|
| Print ease | 1 | 5 | 5 | 5 |
| Tensile | 9 | 6 | 7 | 6 |
| Flexibility | 4 | 5 | 5 | 3 |
| Impact resistance | 8 | 8 | 7 | 5 |
| Heat resistance | 10 | 8 | 8 | 3 |
| UV resistance | 8 | 3 | 9 | 4 |
| Chemical resistance | 9 | 6 | 7 | 5 |
| Cost | 1 | 8 | 6 | 6 |
| Safety | 9 | 5 | 5 | 7 |
| Finishing | 7 | 9 | 9 | 8 |
| Bed adhesion | 5 | 6 | 6 | 8 |
| Accuracy | 8 | 7 | 7 | 7 |
| Brand | Manufacturer | EUR/kg | Tier |
|---|---|---|---|
| 3DXtech ThermaX PEI | 3DXtech | 250 | premium |
| SABIC Ultem 9085 | SABIC | 280 | premium |
| Apium PEI | Apium | 290 | premium |
| SABIC Ultem 1010 | SABIC | 320 | premium |
| Stratasys ULTEM 9085 | Stratasys | 380 | premium |