Complete technical data sheet with print conditions, material properties, and performance specifications.
| Manufacturer | Sunlu | |
| Product Name | PEEK | |
| Filament Type | PEEK | |
| Finish | Standard |
| Nozzle Temperature | 390-420 °C | |
| Bed Temperature | 110-120 °C | |
| Print Speed | 30-60 mm/s | |
| Cooling Fan | On | |
| Retraction Distance | 1-1.5 mm | |
| Retraction Speed | 30-40 mm/s | |
| Build Surface Materials | Carbon fibre plate | |
| Support Material | PVA |
| Tensile strength (X-Y) | 77 MPa | ISO 527-2 |
| Elongation at break (X-Y) | 21 % | ISO 527-2 |
| Flexural strength (X-Y) | 122 MPa | ISO 178 |
| Flexural modulus (X-Y) | 3163 MPa | ISO 178 |
| Notched Izod impact strength (X-Y) | 138 kJ/m² | ISO 180 |
| Shore hardness | 83 D | ISO 868 |
| Heat deflection temperature (0.45 MPa) | 147 °C | ISO 75 |
| Glass transition temperature | 143 °C | ISO 11357-2 |
| Melting temperature | 343 °C | ISO 11357-3 |
| Decomposition temperature (5 % weight loss) | 425 °C | ISO 11358 |
| Moulding shrinkage | 1 % | ISO 294 |
| Melt mass-flow rate | 17 g/10 min | ISO 1133 |
| Density | 1.1965 g/cm³ | ISO 1183 |
| Flammability (UL 94) | V-0 | Data Sheet |
| Weak acids (pH 3-6) | Excellent | Data Sheet |
| Strong acids (pH <3) | Excellent | Data Sheet |
| Weak bases (pH 8-10) | Excellent | Data Sheet |
| Strong bases (pH >10) | Excellent | Data Sheet |
| Deionized water | Excellent | Data Sheet |
| Alcohol (ethanol) | Good | Data Sheet |
| Ketone (acetone) | Fair | Data Sheet |
| Petroleum fuels | Fair | Data Sheet |
| Ester | Fair | Data Sheet |
| Technical Data Sheet | View Data Sheet | Version A/1 · 2026-04 |
| Safety Data Sheet | View Safety Sheet | Version 5.1 · 2025-07-15 |
| PEEK on sunlu.com | Open link |