High Performance Perfluoroelastomer Parts
Kalrez® parts last longer and seal more effectively than other elastomers in demanding processing environments.
DuPont™ Kalrez® perfluoroelastomer parts (FFKM) resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C).
They’re used in highly aggressive chemical processing, semiconductor wafer fabrication, pharmaceutical, oil and gas recovery, and aerospace applications. The long-term, proven performance of Kalrez® parts can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime for greater productivity and yield.
Kalrez® parts and seals also help prevent semiconductor process contamination by reducing particulates, lowering extractables, and resisting degradation in harsh plasma. Kalrez® parts provide low outgassing in vacuum-sealing applications. FDA-compliant seals are also available for food, beverage or pharmaceutical processes.
- Innovation using Kalrez® & Vespel® Video
- Kalrez® Perfluoroelastomer Parts and Seals
- Vespel® & Kalrez® Aerospace Video
- Kalrez® Rapid Gas Decompression Testing
O Ring Failure Analysis Webinar | DuPont™ Kalrez®
This webinar shows examples of o-ring failures, root cause elastomer failure analysis methodologies and analysis examples to help you solve problems and take corrective actions.
Elastomer Seal Selection | Elastomers 101 Webinar by Kalrez®
This webinar helps you make a proper seal selection through information about the various elastomer families, how the process environment affects seal selection and sealing integrity.
Are All Perfluoroelastomers Created Equal?
DuPont Application Engineer, Paul Trillizio, Jr, explains what characteristics and properties make up a high performance elastomer material.
Latest Perfluoroelastomer Parts for Demanding Oil & Gas Applications
DuPont™ Kalrez® & Vespel® Applications Engineer, Mark Whitemarsh, discusses the challenges of perfluoroelastomer materials in demanding oil & gas applications.
Relative Permeation Performance of O-ring Seals Using DuPont Developed Test Method
This webinar reviews relative permeability data of various elastomers and the DuPont test method that was developed to generate it.
Sealing Collaboration Pays Dividends in Chamber Cleaning
Chamber cleaning with NF3 / O2 plasma increased maintenance at Spansion due to seal erosion. Kalrez® 9100 parts improved productivity and reduced cost-of-ownership. Kalrez® 9100 parts were successfully qualified in both thin films and dry etch tools.
- Pharmaceutical Seals for CIP and SIP
O-rings in Pressurized Water Reactor
Due to the combination of extreme temperature, pressure and chemical environments, Kalrez® 0090 was used in a series of mechanical seals employed in the operation of boiler feed pumps for pressurized water reactors.
Process Instrument Gaskets
By switching from gasket seals of PTFE to custom gaskets of DuPont™ Kalrez® perfluoroelastomer parts in the sensor head of a process instrument refractometer used by the food, pulp and paper and chemical industries, process instrument manufacturer.
- Sealing Solutions for Clamping Systems
Kalrez® O-rings for Hydrogen Sulfide Removal
Amine units for hydrogen sulfide removal (H2S) at high temperatures use elastomers like Kalrez® Spectrum™ 6380 FFKM parts for resistance to amines. 6380 helps extend MTBR of valves and pumps in amine service.
O-rings for Gas Sweetening Valves
Kalrez® 7090 perfluoroelastomer parts offer an excellent combination of chemical, Rapid Gas Decompression (RGD) resistance , and high temperature resistance for O-ring applications in gas sweetening valves that handle glycol-based solvents.
Parts for Amine Resistance
A major chemical company switched to Kalrez® Spectrum™ 6380 perfluoroelastomer parts to improve amine resistance & extend mean time between repairs. Improvement of up to 3x in MTBR achieved in a mechanical seal for hot, aggressive amines.
- Seals for Siemens Process
- Kalrez® Spectrum™ 6375 O-rings for PTFE replacement
- Metal O-rings Replacement
Kalrez® KVSP™ valve stem packing saves 56.000 £
Kalrez® KVSP™ valve stem packing, a solution to help reduce fugitive emissions, valve leakage and provide improved control — saves BP Chemical over 56.000 £ per valve annually, cuts shutdowns.