3DXTech 3DXTech CarbonX Black PEI+CF [ULTEM 1010] Filament - (0.5kg) 2.85mm


CarbonX PEI+CF Made Using Ultem 1010 is made using Sabic Ultem™ 1010 PEI [Polyether Imide] and 10% high-modulus carbon fiber. This is an ultra-performance material that is an ideal choice for applications that require superior thermal, chemical, and mechanical properties as well as excellent dimensional stability.

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CarbonX Carbon Fiber Reinforced PEI (Polyether Imide) using a custom-formulated compound made from ULTEM™ 1010 PEI resin and high-modulus carbon fiber. PEI is an amorphous, high-performance polymer that offers excellent mechanical, thermal, and chemical resistance properties.

3DXTech PEI-based filaments offer the ability to create parts with excellent properties even at elevated temperatures, thanks to a high glass transition temperature (Tg) of 217°C. The addition of high modulus carbon fiber reinforcement greatly increases the stiffness and modulus of the PEI material as well as improving the dimensional stability during and after 3D printing.

A prototype part 3D printed using 3DXTECH's CarbonX series filament


  • High thermal properties, with a Tg of 217°C
  • Inherently flame-resistant with low smoke evolution and low smoke toxicity
  • Long-term hydrolytic stability
  • Excellent dimensional stability, low heat creep sensitivity, and a very low, uniform coefficient of thermal expansion create highly reproducible part-to-part dimensions
  • Exceptional strength and modulus, even at elevated temperatures
  • Good resistance to a broad range of chemicals, include automotive fluids, fully halogenated hydrocarbons, alcohols, and aqueous solutions
  • Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies



The excellent balance of flame retardancy, low smoke emission, and low smoke toxicity of ULTEM PEI+CF makes it an excellent candidate for aerospace and aircraft applications. ULTEM offers low toxicity, smoke, and flame evolution. Ultem resins are found in applications such as personal service units, oxygen panels and components, ventilation system components, connectors, cable ducts, latches, hinges, food tray containers, door handles, and interior cladding parts.

Automotive & Transportation:

PEI+CF resins provide automotive manufacturers with a high performance, chemically resistant, thermally-stable, cost-effective alternative to metal that is strong enough to replace steel in some applications yet light enough to replace aluminum in others. For applications like transmission components, throttle bodies, ignition components, sensors, and thermostat housings.


PEI+CF may be an excellent material choice for today’s demanding electrical applications, including connectors, MCB components like housings, shafts and levers, hard disk drive internals, FOUPs, BiTS, PCBs, MCCB internals, Plenum devices, LCD projector internals, fuel cell components, and many other applications.


  • Printing temperature: 360-390°C
  • Bed temperature: 140-160°C
  • Bed adhesion: PEI tape or surface 
  • Heated chamber: Recommended
  • For filled 3D printing filaments, it is recommended to use an abrasive-resistant nozzle (like hardened steel) with a 0.4mm orifice or larger. See Add-On Items.
  • This material is hygroscopic, and it is recommended to dry at 120˚C for at least 4 hours before printing
  • Download the TDS and SDS

ULTEM™ is a registered trademark of Sabic Innovative Plastics

Why Are Items on Clearance?

At MatterHackers, to bring you new and exciting products, we occasionally shift some of our quality stock to the Clearance section.

Reasons for Clearance Items:
  • New Product Versions: When manufacturers release updated versions of printers, CNC machines, filament, etc., the older versions typically go to Clearance.
  • Overstock: Items we have in excess are moved to Clearance to free up warehouse space.
  • Discontinuation: Discontinued product lines often end up in Clearance to expedite the sale of remaining stock.
  • Packaging Changes: When packaging updates occur, we shift the older packaged items to Clearance.
Clearance Does NOT Imply:
  • Poor Quality: Clearance items meet our rigorous quality standards and often brand new, unopened products.
  • Limited Support: You'll receive our excellent customer service for Clearance items. Note, all Clearance purchases are Final Sale and not covered by the MatterHackers Return Policy.

Note, all Clearance purchases are Final Sale and not covered by the MatterHackers Return Policy.

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