Kalrez
- December 23, 2025
Kalrez® Bonded Door Seals
Bonded door seals for gate valves and slit valve door seal applications provide improved sealing performance versus conventional O-rings by reducing particle generation, extending seal life, and minimizing replacement time during preventive maintenance.
DuPont™ Kalrez® bonded door seals are designed for easy installation and low particle generation. They combine a custom seal design and proprietary
- March 04, 2025
DuPont™ Kalrez® 0090 Perfluoroelastomer Parts For Ball Valves in Refineries
Ball valves are primarily used for shut-off applications in the energy industry and must function in a wide range of chemical environments, both gas and liquid, where significant performance differences are often observed between various types of sealing materials.
Kalrez® 0090 O-rings are TOTAL and NORSOK compliant with exceptional chemical resistance and Rapid Gas Decompression performance making them an excellent
- February 14, 2025
Kalrez® Parts Extend Service Life for Process Instrument
Aggressive environment was challenging for PTFE
Through permanent in-line fluids immersion, K-Patents’ “PR-01-S” refractometer is exposed to temperatures from –20 ° to +220 °C, pressures from –0,7 to +25 bar, and some 500 process fluids and chemicals, many of which are extremely aggressive. Delicate digital detector circuits and fiber optics in the sensor head are sealed by two gaskets from
- December 13, 2024
Video - DuPont™ Kalrez® Thermal Stability and Critical Performance Properties
In this video, Gallagher explores Kalrez and its longstanding thermal stability characteristics along with selected critical performance properties, such as permeation rates, outgassing rates, radiation resistance, and hardness/ temperature relationships.
The full agenda can be seen below.
- October 08, 2024
Video - DuPont™ Kalrez® Chemical Resistance | Capabilities & Limits | Test Methods | Successful Case Studies
With Kalrez, you can help ensure your plant against leaks and costly seal failures with Kalrez perfluoroelastomer parts. In virtually any sealing application, from mechanical seals, to quick disconnects, Kalrez parts stand up to heat and chemicals that degrade other rubbers and sealing materials.
Kalrez combines the superior characteristics and properties
- July 17, 2024
DuPont™ Kalrez® and its Robust Chemical Resistance - Amines, Aldehydes, Ethers, Esters, Acids, and Bases
Kalrez® is a result of Viton™ and Teflon™ research. Kalrez is a cross-linked fully fluorinated polymer. Kalrez combines the rubber properties of Viton™ with the chemical resistance of Teflon™…. plus super high temperature resistance, about 200 degrees Fahrenheit GREATER than Viton or Teflon™.
In the molecular
- May 08, 2024
Kalrez® Compression Set Resistance and Sealing Force Retention
Kalrez® perfluoroelastomer parts last longer and seal more effectively than other elastomers due to their exceptional heat resistance. Longer-lasting seals can be a direct route to extended mean time between replacement and lower cost of ownership.
Compression set most often causes issues in applications that undergo broad thermal cycling. When a perfluoroelastomer
- January 30, 2024
Kalrez® Spectrum™ 7075
Kalrez FFKM parts have been the material of choice for mechanical seals, valves, and other chemical and hydrocarbon processing applications for 25 years.
Kalrez Spectrum 7075 expanded on the capabilities of Kalrez 4079 by offering much lower compression set, increased seal force retention, broader chemical resistance and higher temperature stability.
Kalrez Spectrum 7075 joined the family of Kalrez Spectrum™ products designed specifically for
