PEEK Plastic (Polyetheretherketone) Selection Guide

Features of PEEK

Advantages

• High Temperature Resistance: PEEK can withstand high temperatures, maintaining its properties even at temperatures above 250°C (482°F).

• Mechanical Strength: PEEK has exceptional mechanical properties, including high tensile strength, stiffness, and fatigue resistance.

• Chemical Resistance: PEEK is highly resistant to a wide range of chemicals, including acids, bases, and organic solvents.

• Electrical Insulation: PEEK is an excellent electrical insulator, making it suitable for electrical and electronics applications.

• Low Friction: PEEK has a low coefficient of friction, making it useful for applications where reduced wear and friction are important.

• Biocompatibility: PEEK is biocompatible and often used in medical implants and devices.

Disadvantages

• Cost: PEEK is relatively expensive compared to many other thermoplastics, which can limit its use in cost-sensitive applications.

• Processing Challenges: PEEK can be challenging to process due to its high melting point and high viscosity, requiring specialized equipment and expertise.

• Not Suitable for High-Radiation Environments: PEEK may degrade when exposed to high levels of ionizing radiation.

Common Applications of PEEK

• Aerospace: PEEK is used in aerospace applications for components like engine parts, seals, and aircraft interiors due to its lightweight nature and high temperature resistance.

• Medical: PEEK is employed in medical devices and implants, such as spinal implants and dental instruments, because of its biocompatibility and chemical resistance.

• Oil and Gas: PEEK is used in the oil and gas industry for downhole equipment, seals, and connectors due to its chemical resistance and high pressure/temperature capabilities.

• Automotive: PEEK is used in automotive components like bushings, bearings, and seals due to its mechanical strength and wear resistance.

• Electronics: PEEK is used for manufacturing electrical connectors, insulators, and semiconductor equipment due to its electrical insulating properties.

• Chemical Processing: PEEK is employed in chemical processing equipment, including pumps, valves, and gaskets, due to its chemical resistance.

• Food and Beverage: PEEK is used in food processing equipment, such as seals, bearings, and conveyor components, due to its low friction and resistance to food-related chemicals.

• Mechanical Engineering: PEEK is used for precision mechanical components like gears, bearings, and thrust washers due to its low friction and wear resistance.