Kalrez is a high-performance elastomer that is widely used in demanding industrial applications that require excellent resistance to extreme temperatures, chemicals, and pressure. It is a brand name for perfluoroelastomer (FFKM), which is a type of synthetic rubber made from a unique combination of carbon, fluorine, and oxygen. The material is known for its exceptional mechanical strength, chemical resistance, and thermal stability, which make it suitable for use in the most challenging environments.

Kalrez has been in use for more than 30 years and has a proven track record of reliability and performance. It is commonly used in the semiconductor, chemical processing, oil and gas, and aerospace industries, where it is used to seal pumps, valves, and other critical equipment. The material’s chemical resistance to acids, bases, solvents, and oxidizing agents makes it an ideal choice for such applications.

The unique properties of Kalrez are due to its molecular structure. The carbon-fluorine bond in the material makes it extremely inert, while the oxygen atoms impart flexibility and resilience. The material can withstand temperatures ranging from -20°C to 327°C (-4°F to 621°F), making it suitable for use in both high-temperature and cryogenic environments. Kalrez also has excellent compression set resistance, meaning it can maintain its shape and sealing properties over long periods.

Kalrez is available in various grades, each designed to meet specific application requirements. Some grades are formulated for low outgassing and contamination, making them suitable for use in vacuum systems, while others are designed for use in steam and hot water applications. There are also grades that are specially formulated for use in high-pressure and high-temperature applications.