Product Description. DuPont™ Kalrez® perfluoroelastomer parts made from compound are specifically targeted for use in applications requiring high. Kalrez® perfluoroelastomer parts are available in a number of different Kalrez ® Products. Standard. Specialty. is a product for uses requiring higher hardness/higher modulus than more typical applications. Kalrez® Spectrum™ perfluoroelastomer.

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Modification of the finished properties is achieved by use of fillers and other additives. Descriptions of the key attributes for each product and their general areas of application follow. A carbon black-filled compound for general use in O-ringssealsdiaphragms and other specialty parts specifically for the chemical process industry.

Ialrez compound has excellent, broad chemical kallrez, good mechanical properties, and outstanding hot-air aging properties. In addition, it is the suggested compound for use in hot water steam, ethylene oxide and propylene oxide. It is a carbon black filled compound utilizing new and proprietary cure chemistry technology with mechanical properties designed for improving sealing performance in both high temperature environments and temperature cycling situations.

A low compression set compound for general-purpose use in O-rings, kwlrez, seals, and other parts used in the process and aircraft industries. It is a carbon black-filled compound with excellent chemical resistance, good mechanical properties, and outstanding hot air aging properties.

It exhibits low swell in organic an inorganic acids and aldehydes and has good response to temperature cycling effects. Before ordering Kalrez ; parts in specialty products, please consult with technical staff to determine properties needed for the application. Specialty products are generally not held in inventory. It has also been successfully used in applications involving highly oxidizing chemicals. In addition, it has excellent overall chemical resistance.


This cream colored product is easily identifiable when selecting an O-ring material for harsh chemical plant services. These specialty black parts have excellent thermal and mechanical properties, including excellent compression set and seal force retention, resistance to temperature cycling effects, and rapid gas decompression RGD.

Kalrez ® O-rings | DuPont Perfluoroelastomer Parts | DuPont New Zealand

Short excursions to higher temperatures may also be possible. A general-purpose compound for O-rings, seals, and other parts used in chemical process industries. Not recommended for use in organic or inorganic acids at high temperatures. A carbon black-filled compound that has been plasticized with a perfluorinated oil.

It is the softest, lowest modulus compound available. Its shrinkage is greater than other Kalrez compounds; therefore, finished parts may differ from standard specifications. Generally used in oil field and process industry applications where these properties coupled with good amine and general chemical resistance are required. A carbon black-filled compound that is well suited for selected applications in the finishings equipment, pharmaceutical, semiconductor, and chemical transportation markets.

Compound has excellent chemical resistance exhibiting low swell in organic acids, inorganic acids, esters, ketones, and aldehydes. This compound is suggested for use in the ethylene oxide and propylene oxide applications.


It also offers good mechanical properties.

A non-black-filled compound that is well suited for selected applications in the pharmaceutical, semiconductor, and other markets that demand high purity elastomers. Many miscellaneous properties are of interest for specific applications. Some of these are unaffected by compound choice, while others vary with hardness or extensibility. As an example, coefficient of friction typically increases as hardness decreases.

The aklrez set forth herein is furnished free of charge and is based on technical data that DuPont Dow Elastomers believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk.

10.82 X 1.78 K7090

The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards.

Because conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability klrez connection with any use of this information.

As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or a recommendation to infringe on any patents.