Request a quote

PEEK Properties Overview

The true strength of PEEK polymers is in its diverse properties. If you simply have one or two specific engineering requirements alternative engineering polymers will likely work. But for demanding operating environments with three or more engineering requirements – that’s when engineers choose PEEK polymers, often replacing metals and other polymers.
Temperature Resistance
Extreme Temperature

Temperature Resistance

Excellent high temperature performance:

  • Melting point (Tm) = 343ºC
  • Glass transition (Tg) = 143ºC
  • Operating temperature = up to 260℃
  • V-0 flammability rating

See details of other thermal properties and compare the Victrex polymer grades:

Compare grades

Chemical Resistance
Chemical resistance

Chemical Resistance

Excellent resistance to a very wide range of chemicals over a range of temperatures, retaining high levels of mechanical strength and generally with little swelling or discolouration.

Download Chemical Resistance Brochure 

Mechanical Strength
Strength

Mechanical Strength

Excellent strength, stiffness, long-term creep and fatigue properties.  

See details of mechanical properties and compare the Victrex polymer grades:

Compare Grades

Wear Resistance
Wear

Wear Resistance

High abrasion and cut through resistance combined with a low coefficient of friction.  

Victrex materials are used for tribological components due to their outstanding resistance to wear in high pressure and velocity environments.

Electrical Properties
Electricity

Electrical Properties

Victrex materials are often used as an electrical insulator with outstanding thermal, environmental resistance and mechanical performance.

See details of the electrical properties and compare the Victrex polymer grades:

Compare Grades

PFAS-Free
Pfas-free

PFAS-Free

We do not intentionally add, use or generate PFAS during the manufacture of unfilled Victrex PEEK and PAEK polymers.

View our page on PEEK as “Sustainable alternative to PFAS concerns”

High Purity
Purity

High Purity

Victrex materials are inherently pure with very small amounts of low molecular weight volatile organics, resulting in exceptionally low outgassing and extractables even in high vacuum environments.

Bio-Inert
Bio inertion

Bio-Inert

Our medical grade polymers are biocompatible, and one of the most chemically resistant thermoplastics available; it exhibits a superior combination of strength, stiffness and toughness, making it ideally suited for medical device applications such as drug delivery, dental abutments, catheters, blood management and surgical instruments.

More details at “Medical PEEK Polymers for Medical Devices & Applications”

 
Hydrolysis Resistant
Hydrolysis

Hydrolysis Resistant

Victrex high performance polymers are not attacked by prolonged exposure to water, sea water or steam which makes them an ideal choice for use in applications such as medical components, subsea equipment, and valve components.

Processability
Processing

Processability

Victrex materials are some of the highest performing materials melt processable using conventional thermoplastic processing equipment.

View details on processing of PEEK polymers

Recyclable
Recyclable

Recyclable

Due to its high molecular stability, PEEK polymers can be re-melted and reprocessed repeatedly with minimal change to its properties.  This helps its environmental footprint and can ensure that waste material from manufacturing processes can be re-used economically.

Diverse Properties

VICTREX PEEK Properties Guide

DOWNLOAD PROPERTIES GUIDE

Technical Datasheets (TDS)

VIEW GRADES AND TDS

Material Safety Datasheets (MSDS)

VIEW MSDS

One Material, Multiple Benefits

Victrex PEEK Polymer grades

Natural Grades

Unfilled PEEK, a semi-crystalline polymer
available in powders and granules.
DATASHEETS

Filler-Reinforced Grades

Glass and carbon fibre reinforced PEEK for higher strength or complex geometries.
DATASHEETS

Wear Performance Grades

PAEK, semi-crystalline granules reinforced with wear additives for tribological applications.
DATASHEETS

450G™ PEEK

A popular choice. An unfilled polymer granule that delivers higher strength, stiffness and ductility.
DATASHEETS

Temperature Enhanced Grades

Granules optimised to perform in extreme temperature environments.
DATASHEETS

Industry Specific Grades

Developed for specific applications e.g. Pharmaceutical, Food, Gears & Additive Manufacturing.

DATASHEETS

Process with ease when specifying VICTREX PEEK high-performance polymers

VICTREX PEEK polymer is capable of being processed on conventional thermoplastic equipment. Unfilled and filled grades may be supplied in the form of granules, powder or ultra-fine powder. Granules are generally recommended for injection moulding, extrusion, monofilament and wire coating operations. Powder is used for compression moulding whilst fine powders are generally used for coating processes and composite pre-preg manufacture.

Most standard reciprocating screw injection moulding machines are capable of moulding unfilled and filled VICTREX PEEK grades. Complex and intricate high performance components can be mass-produced without annealing or conventional machining. Victrex technical experts can assist with design and process variables such as machine design, barrel capacity, screw and mold design and gating.

VICTREX PEEK thermoplastics can be used in extrusion processes and equipment including wire coating, profile extrusion, film, pipe, sheet and monofilament production. Unfilled and filled grades are readily extruded using conventional melt processing technology. Our highly experienced technical team can help define the machine design and address any processing challenges. 

Compression moulded parts are generally more crystalline, have a higher modulus and tensile strength and are harder with a lower ductility. Glass and carbon fibres may be combined with VICTREX PEEK for compression moulding. Our technical team recommends that our customers anneal parts with very thick sections to relieve stresses.

Application Areas by Industry

Whether it is to go lighter, last longer or cost less, we enable customers to evaluate and adopt our PEEK high-performance polymers where they can deliver a strong advantage.
aerospace industry

Aerospace

PEEK and PAEK-based solutions that replace metals, thermosets and other aerospace polymers

automotive industry

Automotive

PEEK innovation enabling future mobility

Electronics indsutry

Electronics

Offering greater versatility, reliability and design freedom for next-generation electronics

Energy industry

Energy

Pushing Boundaries and Powering the World Together.

Industrial

Industrial

Keeping Your Equipment Working Overtime
WELCOME TO INDUSTRY 4.0.

Medical

Medical

Medical polymers with the potential to improve clinical outcomes.

Victrex lab workers inspecting PEEK product
Blog article
Five factors to consider when moulding PEEK – avoid the need for troubleshooting
Read now
peek intro
video
VICTREX PEEK polymers have prompted advances across industries. They remain a source of active innovation
Watch video
Jonh-preview
blog article
Polymer Crystallinity – HPP Explained
Read now
Scientist looking into a microscope
technical guide
VICTREX PEEK polymer offers excellent resistance to a wide range of chemicals.
Download
Victrex Material Expertise & Parts Design
Video
Victrex brings materials' expertise coupled with application development and parts design
Watch the video
What are the key differences between VICTREX PEEK grades?
Our range includes unfilled, carbon fibre-reinforced, and glass-filled grades, each optimised for specific performance requirements. Grade selection depends on your specific mechanical, thermal, and chemical resistance needs.  Click here to compare VICTREX Polymer properties. https://www.victrex.com/en/datasheets
How does PEEK compare to metals in high-temperature applications?
VICTREX PEEK maintains its mechanical properties at continuous temperatures up to 260°C, offering superior corrosion resistance and weight reduction compared to metals, while providing similar strength-to-weight ratios.
What quality certifications support VICTREX PEEK?
Our materials are manufactured in ISO 9001:2015 certified facilities, with specific grades holding aerospace, medical, and automotive certifications. Full traceability and lot-specific test data are available. For more information click here. https://www.victrex.com/en/certificates
Can I obtain a PEEK sample?
To enquire about purchasing a sample, please request a quote.
How can I purchase Victrex products?

Hi, do you have PEEK questions I can help with?

Vic
This Chatbot relies on generative AI to help you find content on this Victrex website. Please verify the output. Victrex is not liable for any damages or losses as a result of your use of this Chatbot.