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3DXTech THERMAX PEKK-A Natural 1.75mm 500gms

3DXTech THERMAX PEKK-A Natural 1.75mm 500gms

Original price was: £354.53.Current price is: £177.27. £147.73 ex. VAT

In stock

Original price was: £354.53.Current price is: £177.27. £147.73 ex. VAT

THERMAX PEKK-A. A high performance engineering filament. Which is easier to print than PEEK, but still has all the amazing performance qualities.

Availability: In stock SKU: 32119




ThermaX PEKK-A 3D Filament

ThermaX PEKK-A (PolyEtherKetoneKetone) is made using the 60/40 PEKK copolymer and is one of the highest performance materials in the plastics business.  PEKK is a leading material in the PAEK family and has exceptional mechanical, thermal, and chemical resistance properties, while being substantially easier to print than PEEK.  Developed in partnership with Arkema – a leading supplier of ultra-performance materials.

Print ThermaX PEKK parts with Gearbox HT2 High-Temp 3D Printer.  Check it out HERE. 

The Polyaryletherketone (PAEK) family of thermoplastics exhibit exceptional thermal, chemical, and mechanical properties.  The PAEK family includes the following polymers:

  • Polyetherketoneketone (PEKK)
  • Polyetherketone (PEK)
  • Polyetheretherketone (PEEK)
  • Polyetherketoneetherketoneketone (PEKEKK)  

Gone are the days when you needed a wildly expensive closed-source printer and license to take advantage of ultra-performance polymers.  Our PEKK was created to be printed using the many new open-source printer platforms currently available on the market.  Compare to Stratasys? Antero PEKK and you will realize this is a great opportunity to take advanced of an aerospace-grade material without being tied to an expensive closed-source system.

3DXTech? and Stratasys? both purchase PEKK resin from the same supplier, so what’s the difference?  Freedom, cost, and innovation.  ThermaX PEKK can be printed on a growing array of lower-cost printers whereas the Stratasys Antero PEKK requires users to purchase an expensive Fortus? system and a high-priced license.  

ThermaX PEKK-A has a wider processing window than PEEK and typically prints with extruder temps between 325 – 350?C, whereas PEEK often requires extruder temps of 400?C or higher.  ThermaX PEKK has a lower rate and degree of crystallinity than PEEK, which aids in its ease of printing.  However, once printed and annealed, PEKK parts exhibit superior performance vs. PEEK.  Easier to print + superior performance!

ThermaX PEKK product attributes include:

  • 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 (UL94 V-0)
  • Low smoke generation 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, (+/- 0.05mm)
  • Colours:  Natural

Recommended Print Conditions:

  • Extruder Temp:  345 – 375°C
  • Bed Temp: 120 – 140°C
  • Bed Prep: Ultem Tape is the ideal build surface, glue stick on clean glass is suitable
  • Enclosure temp (if your printer is equipped):  70 – 150°C
  • Print Speed:  20-50 mm/s for 0.2mm layer height, faster print speeds as results and experience dictate
  • 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.

Recommended Printing Experience

These categories are somewhat arbitrary, but come from many years of our own printing experience as well as troubleshooting with customers.

Novice: A beginner using an entry-level 3D printer should have minimal problems using this material
Intermediate: User has several months of experience with a moderate to high quality printer
Advanced: User has > 1 year of printing experience and is using a high quality commercial printer
Expert: User has significant amount of experience and is using a high-performance or heavily modified printer

For a list of 3D printers that are capable of printing high temperature materials such as ULTEM or PEEK view here. https://www.aniwaa.com/best-peek-3d-printer-pei-ultem/ 




A premier polymer – one of the highest performance thermoplastics ever invented.

PEEK is an ultra-performance filament, ideal for the most demanding functions in Aerospace, Automotive and Electronic applications. This is possible as it has incredible mechanical properties, excellent strength and durability, resistance to corrosion and temperatures, and flame retardancy. It can withstand boiling water and steam.

Printing with this material is very difficult and requires a significant amount of experience in 3D printing. A high quality or heavily modified printer is mandatory. 



Very High


Very High


Very Difficult



Recommended Settings

Print Temp

375°C -410°C

Temp may vary on brand

Bed Temp

165°C – 175°C

Temp may vary on brand

Print Surface

Heated Bed Required
Enclosure Required
Hardened Steel Nozzle reccomended

Example Prints

Additional information

Weight0.5 kg
Dimensions210 × 210 × 75 mm
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Filament Range

3DXTech Thermax


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