PEEK: High-strength thermoplastic for harsh industrial environments

PEEK (polyetheretherketone) is a high-performance, semi-crystalline thermoplastic polymer. It is widely used in the aerospace, medical, chemical and electronics industries for its ability to withstand high temperatures, aggressive chemical environments and continuous mechanical stress.

A reference material for replacing metal alloys in extreme environments, PEEK has become an industrial standard combining durability, stability and lightness.

Thermal stability up to 300°C

• Continuous service temperature: 250°C, peaks up to 300°C
• Retention of mechanical properties under thermal stress

Excellent mechanical strength

• High rigidity and tensile strength > 100 MPa
• Stable fatigue behavior, even in dynamic use

Exceptional chemical inertia

• Resistant to a wide range of chemicals: acids, bases, solvents
• Compatible with corrosive or sterilizable environments

Tribological performance

• Low coefficient of friction : ideal for moving components
• Good abrasion resistance, even in dry-running conditions

Validated biocompatibility

• Suitable for temporary implants and reusable instruments
• Compatible with steam, gamma or EtO sterilization
   

Aerospace

• Used for insulators, bushings, bearings, structural fasteners
• Resistance to fuels, hydraulic fluids and extreme thermal cycles

Automotive

• Under-hood components: bearings, pistons, seals
• Weight reduction and increased heat durability

Medical devices

• Temporary spinal implants, surgical instruments, diagnostic tools
• Resistant to wear and multiple sterilization protocols

Chemical and electronics industries

• Structural parts, connectors, housings, pumps and valves
• Excellent electrical properties + dimensional stability
   

• KetaSpire® XT-920
  Unreinforced high-temperature PEEK - maximum thermal resistance
• KetaSpire® KT820
  Grade unreinforced - excellent wear and fatigue resistance
• KetaSpire® KT820CF30
  30% carbon fiber reinforced - increased mechanical rigidity
• KetaSpire® KT820GF30
  30% glass-fiber reinforced - improved dimensional stability
• Victrex® PEEK 450CA30
  Grade reinforced with 30% carbon, excellent stiffness/wear ratio
• Victrex® PEEK 450FC30
  Carbon/graphite/PTFE hybrid compound - ultra-low friction
• Victrex® PEEK 450FE20
  Grade modified PTFE 20%, ideal for sliding applications
   

• Expertise in PEEK machining and processing
• Wide choice of grades for your specific applications
• Technical support for sizing, assembly and validation
• Reliable supply with material certificates and full traceability
   

Polyetheretherketone is an exceptional polymer capable of replacing metals in the most demanding sectors. Thanks to its combined thermal, chemical and mechanical properties, it guarantees long-lasting performance even in extreme conditions. DEMGY offers a complete range of PEEK products meeting the most stringent standards, with top-level technical support.