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PEI 9085 3D Printing Filament Features

PEI 9085 (Polyetherimide) is a high-performance thermoplastic engineering plastic with excellent comprehensive properties. Tensile strength reaches 75 MPa, Young's modulus 4400 MPa, flexural strength 115 MPa, flexural modulus 2500 MPa. Heat deflection temperature (HDT B) 150°C. PEI 9085 has outstanding mechanical properties, thermal stability, chemical stability, and electrical insulation performance, suitable for manufacturing high-precision, high-reliability structural components.
Mechanical Properties
Tensile strength 75 MPa, flexural strength 115 MPa, Young's modulus 4400 MPa, flexural modulus 2500 MPa. PEI 9085 has excellent mechanical properties with elongation at break of approximately 5.0%, suitable for manufacturing structural components subjected to high loads.
Thermal Properties
Melt temperature 340°C, heat deflection temperature (HDT B) 150°C (0.45MPa). PEI 9085 has excellent high-temperature resistance and maintains outstanding mechanical properties in high-temperature environments.
Chemical Properties
Excellent corrosion resistance to most organic solvents, acids, and alkalis. PEI 9085 has outstanding chemical stability and hydrolysis resistance, maintaining stable performance in high-temperature and high-pressure environments.

CreatBot PEI 9085 Print Effect Preview

CreatBot PEI 9085 Print Effect Preview

Advantages of Printing with CreatBot Filament

Top-Quality Raw Materials

Selected from internationally renowned manufacturers' virgin PEI resin, ensuring material performance from the source. Every batch undergoes rigorous performance testing before leaving the factory to ensure stable and reliable performance.

Factory Calibrated, Print-Ready

The filament formulation, melt fluidity, and wire diameter tolerance (±0.03mm) are calibrated for all CreatBot printer models, with built-in dedicated parameters in slicing software. Ready to use out of the box without repeated adjustments.

Aerospace-Grade Heat & Flame Resistance

PEI 9085 meets aviation flame retardancy and smoke toxicity requirements with excellent heat resistance, dimensional stability, and mechanical strength for aerospace interiors and connectors.

Supported 3D Printers

CreatBot industrial 3D printers are designed for high-performance materials. The following models feature heated chambers and high-temperature nozzles for professional-grade results.

Technical Data Sheet

Physical PropertiesTest MethodData
DensityISO11831.28g/cm³
Saturation Water Absorption25℃,55%RH/
Melt Flow RateISO 113316g/10min
Melt TemperatureISO 11357340℃
Vicat Softening TemperatureISO 306,GB/T 1633/
Heat Deflection TemperatureISO 75,0.45MPa150℃
Mechanical PropertiesTest MethodData
Tensile Strength XYISO 527, GB/T 104075 MPa
Tensile Strength ZISO 527, GB/T 1040/
Young's Modulus XYISO 527, GB/T 10404400 MPa
Young's Modulus ZISO 527, GB/T 1040/
Elongation at Break XYISO 527, GB/T 10405.0%
Elongation at Break ZISO 527, GB/T 1040/
Flexural Strength XYISO 178, GB/T 9341115 MPa
Flexural Strength ZISO 178, GB/T 9341/
Flexural Modulus XYISO 178, GB/T 93412500 MPa
Flexural Modulus ZISO 178, GB/T 9341/
Impact Strength XYISO 179, GB/T 104365 kJ/m²
Impact Strength ZISO 179, GB/T 1043/

PEI 9085 Filament FAQ

What printing conditions does CreatBot PEI 9085 filament require?

PEI 9085 material requires high temperature and specialized equipment for printing. Recommended nozzle temperature is 400-450°C, print bed temperature 110-220°C, chamber temperature 40-60/90-200°C. Before printing, dry in a forced-air drying oven at 100-120°C for 6-8 hours. Cooling fan 0-100%. Must use specialized high-temperature 3D printers such as CreatBot PEEK-250/PEEK-300 and other high-temperature series printers.

What advantages does PEI 9085 have compared to PEEK?

PEI 9085 has higher impact strength (65 kJ/m² vs lower values for PEEK) while maintaining good mechanical properties. The printing temperature range of PEI 9085 is similar to PEEK, but with better processability and lower cost.

Why is high-temperature drying necessary when printing PEI 9085 material?

PEI 9085 material has strong moisture absorption. Moisture vaporizes during high-temperature printing, causing bubbles inside the print and silver streaks on the surface, severely affecting mechanical properties and appearance quality. Drying in a forced-air drying oven at 100-120°C for 6-8 hours can effectively remove moisture from the material.

What types of models and application scenarios is PEI 9085 material suitable for printing?

With its excellent comprehensive properties, PEI 9085 has wide applications in multiple high-end fields. Typical applications include: ① Aerospace—engine peripheral parts, structural brackets, heat shields, etc.; ② Medical devices—artificial bones, surgical instruments, implants, etc.; ③ Automotive manufacturing—engine parts, bearings, seals, etc.; ④ Electronics & Electrical—chip carriers, connectors, etc., with excellent electrical insulation properties; ⑤ Precision machinery—high-rigid structural components, tooling fixtures, etc.

How should PEI 9085 filament be stored properly?

PEI 9085 material has strong moisture absorption, and proper storage is crucial for ensuring print quality. Storage methods: ① Unopened filament should be stored in a cool, dry place (temperature 15-25°C, humidity <30%), avoiding direct sunlight; ② Opened filament is recommended to be sealed with desiccant in a sealed bag; ③ For short-term non-use (more than 24 hours), it is recommended to remove the filament from the printer and store it sealed.

How to improve first-layer adhesion when printing PEI 9085?

First-layer adhesion is key to successful PEI 9085 printing. The following measures are recommended: ① Heat the print bed to 110-220°C and maintain stable temperature; ② Use 3D print spray, PVP solid glue, or special adhesive to treat the bed surface; ③ Reduce first-layer print speed to 15-20mm/s, with nozzle height slightly lower than normal settings; ④ Set first-layer line width to 120-150% of nozzle diameter to increase contact area; ⑤ Use brim with a width of 8-12mm.

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