Kel-F® (PCTFE) Machined Parts
PolychlorotrifluoroethylenePCTFE (formerly known as Kel-F®) is a high-performance fluoropolymer valued for its ultra-low gas permeability and near-zero moisture absorption.
It is the preferred material for aerospace, medical, and cryogenic applications where purity and dimensional stability are mission-critical.
Polychlorotrifluoroethylene (PCTFE), long recognized by the legacy brand name Kel-F®, is a melt-processable fluoropolymer that combines total chemical inertness with superior mechanical strength. It offers a rare combination of exceptionally low vapor transmission, thermal stability, and precision machinability. This makes it ideal for components exposed to extreme conditions, particularly in high-purity, vacuum, or liquid oxygen environments.
- Chemical Resistance: PCTFE is highly resistant to a wide range of aggressive chemicals, acids, bases, and solvents, making it ideal for applications in chemically harsh environments.
- Low Permeability: PCTFE has extremely low gas permeability, making it suitable for applications where maintaining a hermetic seal or barrier against gases is crucial.
- High-Temperature Resistance: PCTFE materials offer good thermal stability and can withstand elevated temperatures without significant degradation.
- Mechanical Strength: PCTFE has good mechanical strength, toughness, and impact resistance, contributing to its durability in various applications.
- Electrical Insulation: PCTFE is an effective electrical insulator, making it suitable for applications that require electrical insulation and thermal stability.
- Low Friction: PCTFE materials have a low coefficient of friction, making them suitable for applications requiring reduced friction and wear.
- Transparency: Some PCTFE grades exhibit good optical clarity, making them suitable for applications where visual observation is important.
- Valve Components: PCTFE is used in valve seats, seals, diaphragms, and other valve components due to its chemical resistance and ability to maintain reliable seals.
- Gaskets and Seals: PCTFE is employed in gaskets, O-rings, and seals in applications requiring chemical resistance and gas impermeability.
- Bearings and Bushings: PCTFE materials find use in bearing and bushing applications due to their low friction, wear resistance, and self-lubricating properties.
- Electrical Components: PCTFE is utilized in electrical connectors, insulators, and wire coatings due to its electrical insulation and thermal stability properties.
- Scientific Instruments: PCTFE is used in scientific instruments and equipment requiring chemical resistance, low permeability, and dimensional stability.
With its unique balance of chemical resistance and structural integrity, PCTFE remains the industry standard for machined components in high-performance systems. From sealing surfaces to cryogenic insulation, this material consistently meets the rigorous demands of the semiconductor, defense, and space exploration industries.