PEKK
polymerPEKK (polyetheretherketone) is a high-performance semicrystalline aromatic polyketone belonging to the PEEK family of polymers, offering excellent thermal stability, chemical resistance, and mechanical strength at elevated temperatures. It is widely used in aerospace, automotive, and oil & gas industries where components must withstand demanding thermal and chemical environments—including aircraft fuel system components, engine nacelle parts, and downhole drilling tools. Engineers select PEKK over standard engineering plastics when weight savings and high-temperature performance are critical, and over PEEK when slightly different thermal or processing characteristics provide advantages for specific applications.
aerospace composites and componentshigh-temperature mechanical partsoil and gas downhole toolsautomotive engine bay assemblieschemical-resistant piping and sealselectrical insulation systems
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | — | ksi | — | — | |
Elongation at Break(εf) | — | - | — | — | |
Flexural Strength (MOR)(σf) | — | ksi | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | — | — | |
Young's Modulus(E) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | °F | — | — | |
Melting Point / Solidus(Tm) | — | °F | — | — | |
Maximum Service Temperature(Tmax) | — | °F | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.