See the Kalrez Application Guide for your specific needs.

The Chemical Resistance Guide is a resource to help you choose the best elastomer for your application.


DuPont Kalrez®


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DuPont Performance Elastomers is the only supplier that manufactures both the Kalrez® polymer and the finished parts made of Kalrez®. We provide full traceability—an attribute that is highly desirable for your critical applications. Parts are available in standard shapes (such as O-rings and our new sanitary seal) and custom shapes are also available.

In pharmaceutical and food processing sealing applications where cleanliness is critical, PTFE has been the material of choice, until now. Kalrez® perfluoroelastomer parts offer the same level of cleanliness and universal chemical resistance, but unlike PTFE they have true elastomeric properties and sealing capabilities.


DuPont Kalrez® perfluoroelastomer parts stand up to severe downhole conditions–from high pressures and temperatures, to aggressive sour gas and corrosive fluids. Downhole conditions can deteriorate elastomers rapidly. Blistering heat, corrosive fluids and toxic gases can destroy the physical properties and sealing performance of other materials. Even under extreme conditions of pressure, heat and man-made chemicals, Kalrez® seals have held up and remained virtually unchanged.


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The Seal Group at Hydradyne has provided sealing products and solutions for more than 30 years. We realize that you have many options available for obtaining sealing devices, but what matters most is that you purchase the right seal for your needs.

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