FibreX PEEK-GF20




FibreX PEEK-GF20


PEEK (PolyEtherEtherKetone) is one of the highest-performance polymers in world.  FibreX PEEK + 20% Glass Fiber allows for high thermal properties, low warp, improved dimensional stability, and stronger / stiffer parts.

Print FibreX™ PEEK parts with Funmat HT Enchanced High-Temp 3D Printer.


PEEK-GF20 is inherently flame-resistant and self-extinguishing, has excellent chemical resistance, possesses high thermal properties and is very strong. All these properties make it ideal for use in very high-stress environments. It is often used in parts such as gears, bearings and pump and compressor components. PEEK-GF20 finds use in many industries where mechanical failure isn’t an option, namely automotive, aerospace, defense, semiconductor and oil & gas.


  • Amazing Thermal Resistance up to 310°C
  • Glass Transition Temp (Tg) of 143°C
  • Heat Distortion Temp (HDT @ 1.8MPa) of 310°C
  • Melt Temp (Tm) of 343°C
  • Inherent flame resistance (UL94 V-0)
  • Outstanding mechanical, thermal, and chemical resistance
  • Continuous Use Temperature (CUT) of 260°C for 10,000 hours, up to 310°C for short durations
  • Excellent resistance to a broad range of chemicals, such as those used in the oil/gas, automotive, aerospace, industrial, and chemical processing industries


  • Diameter:  1.75mm (+/- 0.05mm)
  • Colors:  Natural/Tan
  • Larger reel quantities available upon request


  • Extruder Temp:  375 – 410°C
  • Bed Temp: 130 – 145°C
  • Bed Prep: 3Dlac spray Ultem™ Tape is the ideal build surface, glue stick on clean glass is suitable
  • Enclosure temp (if your printer is equipped):  70 – 140°C [hotter is better, up to 140°C]
  • Print Speed:  10-50 mm/s for 0.2mm layer height, fast as results dictate
  • Drying Instructions:  Please see the following instructions for when you want to dry out this filament, HERE.

Additional information

Weight N/A
Dimensions N/A
Filament Diameter



1 kg, 250 grams, 500 grams