Perfluoroelastomers
- April 07, 2026
Kalrez® Spectrum™ 7275 Double Seal Life
Kalrez Spectrum 7275 is a perfluoroelastomer that provides long life sealing in an array of aggressive chemical environments that typically make sealing difficult: ethylene oxide, acrylic monomers, silanes and chlorosilanes, and strong oxidizers such as nitric acid, chlorine and chlorine dioxide.
It has demonstrated improved chemical and compression set resistance
- 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
- April 24, 2024
Tri-Clamp® Gaskets
At Gallagher Seals, we sell many sanitary Tri-Clamp® gaskets to customers each year. They are essential for maintaining product integrity, ensuring a perfect seal, and eliminating risks of contamination. Their main purpose is to seal clamp connections in sanitary pipe lines.
Tri-Clamp® seals consist of two flanged ends, a gasket, and a clamp, which can be tightened
- 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
- November 30, 2023
Bottling lines allow manufacturers to rapidly fill thousands of bottles perfectly making them a key element in food & beverage manufacturing facilities. While this equipment is incredibly efficient and has allowed manufacturers to greatly increase production, it offers some unique challenges for sealing solutions. Seals experience rapid and repetitive movements, challenging media, and are required to meet high purity standards often set by the FDA.
With these demanding applications and
- November 01, 2023
Important Kalrez® Lead Time Update
As we mentioned in our messaging earlier this year, DuPont was in the final stages of opening a new Kalrez® perfluoroelastomer parts manufacturing facility at their Tralee Park Annex site in Newark, Delaware.
We are happy to announce that the new facility is completed and running at full capacity.
