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Kalrez® News 2 - Article 11

Chemically Resistant Seals Rated to -42°C With DuPont™ Kalrez® Spectrum™ 0040 Parts

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News Release from DuPont (formerly named Dupont Performance Elastomers when this article was written)

8/24/2010

The latest innovation in DuPont™ Kalrez® Spectrum™ parts help meet the need for effective sealing performance at extremely low temperatures while maintaining the wide range of chemical resistance typical of Kalrez® perfluoroelastomer parts.

Kalrez® Spectrum™ 0040 perfluoroelastomer sealing parts are rated for service at temperatures down to -42°C, a major benefit in equipment used in high latitude, high altitude or other freezing cold environments. Typical applications include chemical and hydrocarbon processing equipment involving cold startups, hose couplings for chemical transport equipment and manhole seals for rail cars.

"The -42°C rating of Kalrez® Spectrum™ 0040 parts marks a major step forward," said Rene Garza, global marketing manager, energy and material handling – DuPont™ Kalrez® and Vespel®. "The -42°C rating also makes Kalrez® Spectrum™ 0040 an excellent choice over less chemically resistant elastomers, such as silicone or fluoroelastomers," according to Garza.

"This development confirms yet again DuPont leadership in perfluoroelastomer technology," Garza said. "The combination of our expertise and control of the entire development process from polymer to finished part pays big benefits for our customers."

DuPont establishes low-temperature seal ratings of various materials by mounting O-rings in a test fixture on the inside wall of a pressure-tight container. The container is then filled with nitrogen to reach an internal pressure of 0.4 MPa (60 psi). Temperature is then dropped in 0.5°C increments until leakage to the outside of the container is detected.

 

Kalrez Spectrum 0400 parts

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 90 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

DuPont™, The miracles of science, Kalrez®, Kalrez® Spectrum™ and Vespel® are registered trademarks or trademarks of DuPont or its affiliates.

Next Article: Article 10: DuPont Performance Polymers Introduces Zalak® 5300 Seals for Cost-Effective Sealing in Photovoltaic Crystalline Silicon and Thin Film Manufacturing

 

 

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