Description

Polyetherketoneketone (PEKK) is a high-performance thermoplastic belonging to the polyaryletherketone (PAEK) family, renowned for its exceptional thermal stability, chemical resistance, and outstanding mechanical properties. This material is engineered to meet the most demanding requirements in advanced manufacturing, where traditional polymers fail. It is an indispensable material for industries such as aerospace, automotive, oil & gas, and medical device manufacturing, where performance under extreme conditions is non-negotiable.

Application

• Aerospace Components: Used for lightweight, high-strength structural parts, interior panels, and brackets that must withstand high temperatures and aggressive fuels.
• Medical Implants & Instruments: Ideal for spinal fusion cages, dental implants, and surgical tooling due to its biocompatibility, sterilizability (autoclave), and excellent imaging properties (radiolucency).
• Oil & Gas Downhole Tools: Manufactured into seals, bearings, and valve components that resist high pressure, temperature, and corrosive downhole environments.
• Additive Manufacturing (3D Printing): A premium material for powder bed fusion (PBF) processes to produce complex, end-use parts with high heat deflection temperatures.
• Semiconductor Manufacturing: Utilized in wafer carriers, clamp rings, and other components that require ultra-high purity, low particle generation, and resistance to plasma etching.
• Automotive & Motorsports: Applied in under-the-hood components, electrical connectors, and high-performance bearings where thermal and chemical resilience are critical.

Basic Information

Product Name	Polyetherketoneketone
CAS No.	74970-25-5
Molecular Formula	(C14H8O3)n
Molecular Weight	224.21 (monomer)
Synonyms	PEKK; Poly(oxy-1,4-phenylenecarbonyl-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene); Poly(ether ketone ketone); 1,4-Bis(4-phenoxybenzoyl)benzene polymer; PAEK; Polyaryletherketone; Ketonex® (trade name); OXPEKK® (trade name)
EINECS	Contact for details

Quality Control

Our Polyetherketoneketone is manufactured under a stringent quality management system. Each batch is subjected to rigorous analytical testing to ensure consistency in molecular weight, thermal properties, and purity, meeting the high standards required for critical applications. Certificates of Analysis (COA) detailing key parameters such as melt viscosity, glass transition temperature (Tg), and crystallinity are provided with every shipment. We support compliance with relevant industry and regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). As a high-performance polymer, it is generally stable under these conditions. Protect from prolonged exposure to excessive heat and moisture to maintain optimal material properties prior to processing.

Specification

Item	Specification
Appearance	Off-white to tan powder or granules
Glass Transition Temperature (Tg)	~156 - 165 °C
Melting Temperature (Tm)	~305 - 365 °C
Density	~1.30 g/cm³
Tensile Strength	> 100 MPa
Flexural Modulus	> 4.0 GPa
Melt Viscosity	Grade dependent
Ash Content	< 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.