A Product of DuPont Dow Elastomers

Southwest Seal and Supply, Inc is one of the leading suppliers of Kalrez® elastomer products including o-rings and gaskets for the semiconductor and other industries. We carry an extensive inventory to meet your immediate requirements.

Kalrez® perfluoroelastomer parts are available in a number of different compounds that are formulated to optimize properties and give the best possible performance in various applications. Modification of the finished properties is achieved by use of fillers and other additives.

4079--- A low compression set compound for general-purpose use in O-rings, diaphragms, 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 and inorganic acids and aldehydes and has good response to temperature cycling effects. A maximum operating temperature of 316ºC (600ºF) is recommended, with short excursions to higher temperatures possible. This compound is not recommended for use in hot water/steam applications or in contact with certain hot aliphatic amines, ethylene oxide and propylene oxide.

1050LF---A general-purpose compound for O-rings, seals and other parts used in chemical process industries. It has good hot water/steam, excellent amine resistance and compression set properties. Maximum recommended service temperature of 288ºC (550ºF). Not recommended for use in organic or inorganic acids at high temperatures.

Kalrez® Ultrapure compounds are designed specifically for Semiconductor Manufacturing.

8201 Ultrapure Wet ---Was developed specifically for wet chemical applications. It features lower elemental extractables than competing perfluoroelastomers as well as very low organic contamination. Ultrapure Wet offers excellent resistance to Piranha, ultrapure deionized water (UPDI), and other aggressive chemicals used during lithography, etching, and wafer cleaning. It has good compression set characteristics and is thermally stable up to 220ºC (428ºF).

8101 Ultrapure Dry ---Offers excellent compression set performance for dry chemical processes and plasma environments. This compound contains non-reactive reinforcing filler for superior protection against seal degradation and particle generation. It's exceptional outgassing characteristics make it well suited for high-temperature and vacuum applications. Ultrapure Dry exhibits excellent resistance to corrosive gases and thermal stability up to 300ºC (572ºF).

4079 Ultrapure ---A low compression set compound for general use in many semiconductor process environments. This carbon black-filled compound offers excellent chemical resistance, good mechanical properties, and thermal stability up to 316ºC (600ºF).

2037 Ultrapure ---A non-black filled compound for use in many plasma environments. This compound offers excellent chemical resistance, good mechanical properties, and thermal stability up to 220ºC (428ºF).

Note: Before ordering Kalrez parts in specialty compounds, please consult with DuPont or Southwest Seal and Supply's technical staff to determine properties needed for the application. Specialty compound products are generally not held in inventory.

1018---A carbon black filled compound of similar hardness to 1050, but with high temperature capability to 288ºC (550ºF). Has better hot water/steam resistance properties than all other compounds, except 3018. Not recommended for use in organic or inorganic acids at high temperatures or for rapid temperature cycling applications

1058---A carbon black filled compound that has been plasticized with a perfluorinated oil. It is the softest, lowest modulus compound available. Generally it is similar in chemical resistance to 1050LF as it has an upper service temperature of 260ºC (500ºF). Typically used in applications that require low sealing force or high extensibility, including liquid chromatography septa, seals or seats for relief valves and tubing. Its shrinkage is greater than other Kalrez compounds; therefore, finished parts may differ from standard specifications.

1091---FDA

3018---A carbon black filled compound similar to 1018 except for higher hardness/modulus. This compound offers the best hot water/steam resistance and the best high-pressure extrusion resistance. Generally used in oil field and process industry applications where these properties coupled with good amine and general chemical resistance is required.

2035---A carbon black filled compound that is well suited for selected applications in the finishings equipment, pharmaceutical, semiconductor and chemical transportation markets. Compound 2035 has excellent chemical resistance exhibiting low swell in organic acids, inorganic acids, esters, ketones and aldehydes. It also offers good mechanical properties. A maximum service temperature of 218ºC (425ºF) is recommended.

2037---A non-black filled compound that is well suited for selected applications in the pharmaceutical, semiconductor and other markets that demand high quality purity elastomers. Compound 2037 has excellent chemical resistance exhibiting low swell in organic acids, inorganic acids, esters, ketones and aldehydes. It also offers good mechanical properties. A maximum service temperature of 218ºC (425ºF) is recommended.

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. In general, miscellaneous physical properties are similar to those of Viton® fluoroelastomer.

Product safety information is available in Material Safety Data Sheets (MSDS) documentation.

Other specialty or custom compounds may be available or developed for applications that require different properties than the above compounds offer.

Let our trained personnel assist you with your special requirements. Southwest Seal's inventory, knowledge, & customer service abilities assure our customers consistent quality, service, and traceability.

Please Call us At 1-800-421-3737
Or Fax to 1-505-889-0804

Email:  sales@swseal.com

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