CarbonX™ CF PEKK-C (Aerospace)


PEKK (PolyEtherKetoneKetone) is one of the highest-performance polymers in world.  Aerospace-grade performance made possible by using Kepstan® PEKK and Toray® Aerospace-Grade T800 24K Chopped Carbon Fiber.  This compound was created for extreme applications where exceptional thermal, mechanical, and chemical resistance properties are required.  


CarbonX® CF-PEKK has a wider processing window than PEEK and typically prints with extruder temps between 360-390°C, whereas CF-PEEK often requires extruder temps above 400°C.  CarbonX™ PEKK has a lower rate and degree of crystallinity than PEEK, which aids in its ease of printing.  However, once printed and annealed, PEKK-C parts exhibit superior performance vs. both PEKK-A and PEEK.  Easier to print + superior performance!

CarbonX™ CF-PEKK product attributes include:

  • This grade of PEKK is made using the 70/30 PEKK copolymer (PEKK-C)
  • Toray® T800 24K Aerospace-Grade Chopped Carbon Fiber
  • Substantially easier to print than PEEK
  • Continuous Use Temperature (CUT) of 260°C, and higher for short duration
  • Glass Transition Temp (Tg) of 162°C (20°C higher than PEEK)
  • Melt Temp (Tm) of 335°C  (allows for lower print temps than PEEK)
  • Inherent flame resistance
  • Low smoke generation - ideal for aerospace applications
  • Outstanding mechanical, thermal, and chemical resistance
  • Excellent resistance to a broad range of chemicals, such as those used in the oil/gas, automotive, aerospace, industrial, and chemical processing industries

Filament Specifications:

  • Diameter:  1.75mm, 2.85mm (+/- 0.05mm)
  • Larger reel quantities and other diameters available upon request

Recommended Print Conditions:

  • Extruder Temp:  360 - 390°C 
  • Bed Temp: 120 - 140°C
  • Bed Prep:  Nano Polymer Adhesive
  • Enclosure temp (if your printer is equipped):  130°C+
  • Drying Instructions:  Please see the following instructions for when you want to dry out this filament, HERE.  

    ThermaX™ is a trademark of 3DXTech LLC, it's owners, and affiliates.

    Kepstan® is a registered trademark of Arkema Inc.

    Antero™ is a trademark of Stratasys Ltd.

    Download MSDS & Technical Data


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