Description

Peek CAS NO 29658-26-2 is a high-performance engineering thermoplastic known chemically as Polyetheretherketone. This material is valued for its exceptional mechanical strength, thermal stability, and chemical resistance, making it a superior alternative to metals and other polymers in demanding environments. It is essential for manufacturers and engineers across the aerospace, automotive, medical device, and semiconductor industries who require reliable components that perform under extreme stress, temperature, and corrosive conditions.

Application

• Aerospace Components: Used in seals, bearings, and structural parts due to its high strength-to-weight ratio and flame retardancy.
• Medical Implants & Instruments: Ideal for surgical tools, dental healing caps, and spinal fusion devices because of its biocompatibility and sterilizability.
• Automotive & Industrial Parts: Manufactured into seals, piston parts, and pump components that withstand high temperatures and aggressive fluids.
• Electrical & Electronics: Serves as an excellent insulator for cable insulation, semiconductor wafer carriers, and connectors in high-temperature settings.
• Oil & Gas Equipment: Used in downhole exploration components, valve seats, and seals that resist sour gas and high-pressure conditions.
• Food Processing Machinery: Applied in parts requiring repeated steam sterilization and compliance with food contact regulations.

Basic Information

Product Name	Peek
CAS No.	29658-26-2
Molecular Formula	(C19H12O3)n
Molecular Weight	Polymer (Variable)
Synonyms	Polyetheretherketone; PEEK; Poly(oxy-1,4-phenylenecoxy-1,4-phenylenecarbonyl-1,4-phenylene); Poly(oxy-p-phenylenecoxy-p-phenylenecarbonyl-p-phenylene); Victrex PEEK; Ketron PEEK; APC (Aromatic Polymer Composite); CAS 29658-26-2
EINECS	Contact for details

Quality Control

Our Peek polymers are manufactured under stringent quality management systems to ensure batch-to-batch consistency and performance reliability. We provide material certifications and detailed Certificates of Analysis (COA) that include key parameters such as melt flow rate, thermal properties, and mechanical strength data. Specifications can be aligned with various industry standards, including ISO 10993 for biocompatibility, UL 94 for flammability, and FDA regulations for food contact, depending on the grade.

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). Keep away from strong heat sources and open flames. Although PEEK has low moisture absorption, it is recommended to store in original packaging until use to prevent contamination.

Specification

Item	Specification
Appearance	Off-white to beige granules/powder
Density	1.30 - 1.32 g/cm³
Melting Point (DSC)	340 - 345 °C
Glass Transition Temperature	143 °C
Tensile Strength	> 90 MPa
Flexural Modulus	> 3.6 GPa
Melt Flow Rate (MFR)	Grade Dependent
Water Absorption (24h)	< 0.5 %

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