PEEK Filaments

what is peek Filament?

This is a kind of made of Polyether Ether Ketone (PEEK) filament is a kind of high-performance filament material, can be used in solvents for a long time, and peek filament itself has hydrolysis resistance, so it can be cleaned in high temperature steam kill, peek filament belongs to the environmental protection material, in line with the U.S. FDA 3d printing peek is an environmentally friendly material that meets the requirements of the U.S. FDA for food hygiene grade, and is flame retardant.

Due to its corrosion and temperature resistance, abrasion resistance, and biocompatibility, PEEK plastic is widely used in the 3D printing industry, automotive manufacturing, biomedical industry, and aerospace industry.

However, due to PEEK's high melting point and other physical properties, polyether ether ketone 3d printing materials requires specialized 3D printers capable of providing higher print temperatures and a closed print environment to ensure print quality and finished product performance.

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PEEK 3D printer filament Specification

Specification

PEEK Filament Grade

PEEK 3d printing as a strongest 3D printer filaments

The following is the grade classification of peek filament

Pure PEEK (Virgin PEEK Filament)
This is a filament made from pure PEEK resin without any additives or fillers.
Carbon Fiber Reinforced PEEK (Carbon Fiber PEEK Filament max 10% Carbon Fiber )
This is a type of PEEK base material in which carbon fibers have been added, not only to enhance the strength and rigidity of the filament, but also to reduce weight.
Glass Fiber PEEK (Glass Fiber PEEK Filament 10% Glass Fiber)

This is a kind of filament with glass fiber added to the PEEK base material, which enhances the strength and durability of the filament.

More PEEK RAW MATERIALS

3d filament sizes

Name	product size
PEEK filament	Diameter(mm)	Diameter(mm)
	Φ0.1mm	Φ1mm
	Φ0.15mm	Φ1.5mm
	Φ0.2mm	Φ1.75mm
	Φ0.25mm	Φ2mΦ
	0.3mm	Φ2.5mm
	Φ0.4mm	Φ3mm
	Φ0.5mm	Φ4mm

Features

In self-extinguishing Flame retardant by nature Long term hydrolytic stability even above 250°C Exceptional resistance to a wide range of chemicals including automotive fluids, solid-paraffins, alcohol and aqueous solutions Low smoke and toxic gas emission Excellent dimensional stability with low heat creep, low and uniform coefficient of thermal expansion, giving PEEK highly reproducible part-to-part dimension High thermal resistance, TG is 143°C CUT is 240-260°C Tm 343°C

PEEK 1.75 mm filament guide

PEEK 3d printing filament Application Areas

PEEK polyester 3d printer filament 1.75mm additive manufacturing processing
Filament Fusion printed parts to achieve improved strength of printed parts and printability compared to PEEK polymer on most machines.
It can be used in high temperature environments as well as chemical infiltration environments, has low outgassing and can be suitable for sterilization.
This print material is not suitable for medical implant applications.
Drying prior to use is recommended to avoid negative effects on the printing device.

Packaging

Spool Dimensions:200mm diameter | 70mm width | 55mm centre bore
Spool Material: Heat-resistant Polycarbonate
Nominal Weights:1kg, 0.5 kg respectively
Nominal Lengths:322m, 161m respectively

PEEK filament Properties

Tensile Strength: XY:60 MPA YZ: 70 MPA ZX:45 MPA | Yield, 23°C
Tensile Modulus: XY:3.3 GPA YZ: 2.5 GPA ZX:2.7 GPA | 23°C
Tensile Elongation: XY:15% YZ: 15% ZX:5.0% | Break, 23°C

Filament melting point

Melting Point :303°C DSC
Glass Transition (Tg) :151°C (DSC (Onset) | 154°C(DSC (Midpoint)
Crystallisation Point : 249°C

How long is 1kg of PEEK filament(1.75mm)

320M

Flow

Melt Viscosity : 245Pa.s (400°C, 1000s-1 )

PEEK 3D Printing filament process Conditions

PEEK filament temperature
/ Time: 120°C / 5h (residual moisture <0.02%)

Extrusion Temperature: 380-400°C (Nozzle)

Chamber/Build-Space Temperature: Printing directly semi-crystalline: Above 150°C
Printing amorphous: Below 150°C

Bed Temperature: 20-40°C above chamber temperature, keeping below 150°C for amorphous print

Annealing conditions: Slow heating rate (3°C/min ramp rate). 170-180°C, 2-4 hours. Optimization may be required.

Before printing, the PEEK material is baked in an oven at 150°C for 3 hours.

The purpose of baking is to remove moisture from the material, which prevents air bubbles and poor interlayer bonding during printing.

Remove and wait for natural cooling.

Nozzle Diameter

Nozzle Diameter
Typical Sizes: 0.4mm to 0.6mm
Selection Criteria:
4 mm: for higher precision and detail, but longer print times

0.6 mm: Larger prints that need much more strength come with less detail, printing is slower.

Pro Tip: Wear resistant nozzle such as these nozzles for wear resistance of tungsten carbide, if you are considering using wear-resistant nozzle in PEEK as such nozzle materialsious are more robust, but more wear resistance.

Feed Rate

Optimal Feed Rate: 10-30 mm³/s

Adjustments Based On:
Printing Temperature: The higher the temperature, the better so long as it is still within the printer material limitations.

Print Speed: Should be tuned relative to print complexity and finish; slower feed rates are best for fine layers and surface finish.

Layer Thickness and Fill Density: Thicker layers and higher fill densities necessitate a higher feed rate.
Note: Start with a lower feed rate and gradually increase to find optimal parameters while ensuring stable extrusion and print quality.

PEEK 3d printer filament key Parameters

Printing Speed: Recommended 30-50 mm/s, matched with feed rate and temperature to prevent unstable extrusion and poor layer adhesion.
Retraction Settings:
Retraction Distance: 1-2 mm
Retraction Speed: 20-30 mm/s
Note: Due to PEEK's high viscosity, retraction settings need fine-tuning to avoid stringing and clogging.