PEEK

Advanced

Polyether Ether Ketone

The pinnacle of 3D-printable engineering polymers. PEEK offers metal-like mechanical properties, continuous operating temperatures above 250°C, and exceptional chemical resistance. It is used in aerospace, medical implants, and oil-and-gas applications, but requires specialized high-temperature printers that can sustain 400°C+ nozzle and 150°C+ chamber temperatures.

Nozzle Temp370–420°C
Bed Temp130–160°C
Print Speed15–30 mm/s

Printing Tips

  • A standard desktop printer cannot print PEEK — you need an all-metal hot end rated to 450°C and a heated chamber above 120°C.
  • Use a hardened steel or ruby nozzle; PEEK's processing temperature will degrade brass nozzles rapidly.
  • Chamber temperature must stay above 120°C throughout the print to prevent crystallization-related cracking between layers.
  • Post-print annealing at 200°C for 2-4 hours dramatically improves crystallinity, strength, and heat resistance.
  • PEEK is hygroscopic — dry at 150°C for 3-4 hours immediately before printing; even minor moisture causes delamination.

Use Cases

Aerospace structural brackets and ductingMedical-grade surgical instruments and implantsOil-and-gas downhole componentsHigh-temperature electrical insulationChemical processing valve seats and sealsAutomotive under-hood components exposed to engine heatReplacement for machined metal parts where weight savings matter

Compatible Printers

Find PEEK slicer settings for your printer — browse all printers and select PEEK from the filament selector.

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3DXTech PEEK 1.75mm→Polymaker PEEK 1.75mm→Intamsys PEEK Filament→

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Other Filaments

PLA

190-220°C / 50-60°C

PLA+

200-230°C / 50-70°C

PETG

230-250°C / 80-90°C

ABS

230-260°C / 95-110°C

ASA

240-260°C / 90-110°C

TPU

210-240°C / 40-60°C

Nylon (PA6)

240-280°C / 70-90°C

PC

260-310°C / 100-120°C

HIPS

230-245°C / 90-110°C

PVA

185-215°C / 50-60°C

Wood-fill PLA

180-220°C / 40-60°C

Metal-fill PLA

195-220°C / 50-60°C

Carbon Fiber PETG

230-260°C / 70-85°C

Resin

Resin (UV cure)

Flexible (TPE/TPC)

200-230°C / 30-50°C

Silk PLA

215-230°C / 60-70°C

Matte PLA

195-225°C / 50-65°C

High Speed PLA

190-230°C / 45-60°C

Recycled PLA

190-220°C / 50-60°C

PLA Marble

195-220°C / 50-60°C

Rainbow PLA

195-225°C / 50-60°C

Glow-in-the-dark PLA

195-225°C / 50-60°C

Copper-fill PLA

195-220°C / 50-60°C

Bronze-fill PLA

195-220°C / 50-60°C

Conductive PLA

200-230°C / 50-60°C

Recycled PETG

225-250°C / 75-90°C

Glass-fiber PETG

235-260°C / 80-95°C

CPE

240-270°C / 75-90°C

PC-ABS

250-280°C / 100-115°C

PA6

240-270°C / 80-100°C

PA6-CF

255-280°C / 85-100°C

PA12-CF

260-280°C / 80-100°C

PAHT-CF

280-310°C / 100-120°C

ABS-CF

240-260°C / 90-110°C

Kevlar Nylon

245-275°C / 85-100°C

TPU 95A

210-235°C / 40-60°C

TPU 87A

210-235°C / 40-60°C

TPE

200-230°C / 30-50°C

TPC

210-240°C / 40-60°C

POM

200-220°C / 100-130°C

PP

220-250°C / 85-100°C

PEI / ULTEM

350-400°C / 130-160°C

BVOH

190-220°C / 50-60°C

Breakaway Support

210-240°C / 50-70°C

PHA

175-200°C / 40-60°C

PEEK guides

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