PEEK Filament

PEEK Filament provides exceptional thermal stability, high mechanical strength, and excellent chemical resistance in a continuous polymer strand form ideal for additive manufacturing and precision extrusion processes. Its biocompatibility, resistance to hydrolysis, and ability to maintain structural integrity at elevated temperatures make it valuable in aerospace, automotive, and biomedical industries. Specific applications include 3D-printed orthopedic implants, lightweight aerospace brackets, and high-performance seals for chemical processing equipment. In research, PEEK filament supports the development of composite structures reinforced with carbon fibers, studies of high-temperature polymer behavior, and prototyping of medical devices. Its ability to be processed into complex geometries without sacrificing performance underlines its importance in advancing both industrial engineering and scientific innovation.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Filament

Diameter		±20%
Length		+5% / -1%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good
Halogens	Good-Poor
Ketones	Good-Poor

Mechanical Properties

Element	Value
Coefficient of friction	0.18
Hardness - Rockwell	M99
Poisson's ratio	0.4
Elongation at break( % )	50
Tensile modulus( GPa )	3.7-4
Izod impact strength( J m⁻¹ )	85
Tensile strength( MPa )	70-100

Electrical Properties

Element	Value
Dielectric constant @1kHz	3.2-3.3@50Hz-10Khz
Dissipation factor @ 1MHz	0.003
Dielectric strength( kV mm⁻¹ )	190@50µm
Volume resistivity( Ohmcm )	10¹⁵-10¹⁶

Physical Properties

Element	Value
Flammability	V-0 @ 1.5mm
Radiation resistance	Good
Resistance to Ultra-violet	Fair
Limiting oxygen index( % )	35
Water absorption - equilibrium( % )	0.5
Water absorption - over 24 hours( % )	0.1-0.3
Density( gcm⁻³ )	1.26-1.32

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	260
Heat-deflection temperature - 1.8MPa( C )	160
Upper working temperature( C )	250
Specific heat( J K⁻¹ kg⁻¹ )	1340
Thermal conductivity( W m⁻¹ K⁻¹ )	0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	47-108