From aerospace and chemical processing to chip manufacturing and oil and gas applications, DuPont™ Kalrez® elastomers are engineered to provide more stability, more resistance, and more effective sealing. Period. While DuPont didn't invent o-rings or specialty sealants, it has a 40-year track record of innovation and development, creating sealants that stand up to the most challenging operating environments.
Aside from its cleanliness and purity, Kalrez® polymer chains are engineered to be one of the most inert polymer structures available, standing up to more than 1,800 different chemicals while offering high-temperature stability.
Kalrez® perfluoroelastomer (FFKM) parts are manufactured to the highest quality standards. Every part has documented traceability, and these parts provide one of the longest, most predictable lifespans in industry. The long-term, proven performance of Kalrez® parts can mean less frequent seal changes, repairs, and inspections, increasing process and equipment uptime for greater productivity and yield.
DuPont Kalrez® and Vespel® Center of Excellence
When sealing matters, choose DuPont Kalrez® and Vespel® products. DuPont™ Kalrez® and Vespel® work with customers to bring state of the art technology to solve customers’ toughest application challenges.
Kalrez® Sealing Technologies
From aerospace and chemical processing to chip manufacturing and oil and gas applications, DuPont™ Kalrez® elastomers are engineered to provide more stability, more resistance, and more effective sealing. Period.
DuPont Kalrez® and Vespel®
Perfluoroelastomer parts have been the sealing material of choice for long-term reliable sealing in the harshest chemical environments. Today, elastomeric seals are expected to perform in a variety of even more aggressive chemicals and at higher temperatures.
Kalrez® 0090 parts for Rapid Gas Decompression
DuPont scientists developed Kalrez® 0090 perfluoroelastomer parts for outstanding resistance to repeated rapid gas decompression.
Most Viewed Products
DuPont
Kalrez® 4079
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Pump Parts, Semiconductor Applications, Aircraft Applications
Kalrez® 4079 perfluoroelastomer parts are a low compression set product for general purpose use in O-rings, diaphragms, seals and other parts used in the chemical process and aircraft industries. It is a carbon black filled product with excellent chemical resistance, good mechanical properties, and outstanding hot air aging properties. It exhibits low swell in organic acids, inorganic acids and aldehydes, and has good response to temperature cycling effects. A maximum service temperature of 316°C (600°F) is suggested, with short excursions to higher temperatures possible. Kalrez® 4079 is not recommended for use in hot water/steam applications or in contact with certain hot aliphatic amines, ethylene oxide, or propylene oxide.
DuPont
Kalrez® Spectrum™ 6375
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, Electrical Connectors
Kalrez® Spectrum™ 6375 is designed to give outstanding performance in the widest possible range of chemicals and temperatures. Mixed streams, once a problem for many chemical processors, can now be handled by 6375, furthermore, the curing system also allows for a maximum service temperature of 275°C (525 °F) which translates to increased chemical resistance over all temperature ranges, especially if high temperature process excursions occur. This combination of chemical and thermal resistance provides advantages for chemical processors. Kalrez® Spectrum™ 6375 is a carbon black-filled product for general use in O-rings, seals, diaphragms and other parts specifically for the chemical process industry. This product has excellent broad chemical resistance, good mechanical properties, and outstanding hot-air aging properties. Kalrez® Spectrum™ 6375 is well suited for use in mixed process streams because of its excellent resistance to acids, bases, and amines. It is also recommended for use in hot water, steam, pure ethylene oxide and propylene oxide.
DuPont
Kalrez® Spectrum™ 7075
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, Pump Parts
Kalrez® perfluoroelastomer parts are the material of choice for mechanical seals, valves, flanges and other demanding chemical and hydrocarbon processing applications. Kalrez® Spectrum™ 7075 has enhanced physical properties including very low compression set and improved seal force retention. It is a carbon black-filled product utilizing proprietary cure chemistry. Its mechanical properties are designed for improved sealing performance in both high temperature environments and temperature cycling situations. Kalrez® Spectrum™ 7075 O-rings have a glossy finish. This product was developed specifically for the chemical and hydrocarbon industries to provide improved chemical and thermal resistance better than the industry standard set by Kalrez® 4079.
DuPont
Kalrez® 9100
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 9100 is an amber translucent product targeted specifically for PECVD, ALD, HDPCVD and Conductor (Poly/Metal) Etch applications*. Kalrez® 9100 has been specifically designed for low erosion and ultra-low particle generation in harsh plasma environments. It offers excellent thermal stability, very low outgassing as well as excellent elastic recovery and good mechanical strength properties and is well suited for both static and select dynamic sealing applications*. A maximum application temperature of 300°C (572°F) is suggested. Ultrapure post-cleaning and packaging is standard for allKalrez® 9100 parts.
DuPont
Kalrez® 6230
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® 6230/6230A* perfluoroelastomer parts are a black product that provide superior chemical resistance and low contamination from extractables in pharmaceutical and food handling applications where FDA compliance is required. Kalrez® 6230/6230A parts are especially suited for Water for Injection (WFI) systems, Steam-in-Place (SIP) cleaning and other critical systems. Kalrez° 6230/6230A parts are thermally stable up to 260°C (500°F), permitting them to be used in Stage II Sterilization processes, where other elastomers lose their sealing ability.
DuPont
Kalrez® 6221
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® 6221 perfluoroelastomer parts are a white product that provide superior chemical resistance and low contamination from extractables in pharmaceutical and food handling applications where FDA compliance is required. Kalrez® 6221 parts are especially suited for Water for Injection (WFI) systems, Steam-in-Place (SIP) cleaning and other critical systems. Kalrez° 6221 parts are thermally stable up to 260°C (500°F), permitting them to be used in Stage II Sterilization processes, where other elastomers lose their sealing ability. Kalrez® 6221 is available as O-rings. For white custom parts, please refer to Kalrez® LS205 parts.
DuPont
Kalrez® Spectrum™ 7375
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® Spectrum™ 7375 perfluoroelastomer parts are an innovative FFKM product based on a patented crosslinking system for chemical process industry applications where broad chemical and water/steam resistance are needed at elevated temperatures. Kalrez® Spectrum™ 7375 parts exhibit excellent compression set resistance, outstanding physical property retention, and good mechanical strength properties. A maximum application temperature of 300°C is suggested.
DuPont
Kalrez® 3035
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® 3035 perfluoroelastomer parts are a carbon black filled product well suited for use in production of valve stem packings. It may also be used to manufacture O-rings. Kalrez® 3035 was originally developed for use in Kalrez® KVSP® where low process temperatures or cold ambient conditions are involved. Chemical compatibility properties of Kalrez® 3035 are similar to those of Kalrez® 3018. This product has excellent chemical resistance to a wide variety of solvents and has a maximum service temperature of 288 °C (550 °F).
DuPont
Kalrez® 1050LF
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings, General Purpose
Kalrez® 1050LF perfluoroelastomer parts are a general-purpose product for O-rings, seals, and other parts used in chemical process industries. It has good hot water/steam resistance, excellent amine resistance, and good compression set properties. The maximum suggested service temperature is 288°C (550°F). It is not recommended for use in organic or inorganic acids at high temperatures.
DuPont
Kalrez® Spectrum™ 6380
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® Spectrum™ 6380 perfluoroelastomers parts are a non-black product developed specifically for chemical processes involving hot, aggressive amines. In addition, it has excellent overall chemical resistance (see chart below). This cream colored product is easily identifiable when selecting an O-ring material for harsh chemical plant services. This material has excellent mechanical properties and is a top choice for both static and dynamic sealing applications. A maximum service temperature of 225°C is suggested while short-term excursions to higher temperatures are permissible.
DuPont
Kalrez® LS390
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® LS390 perfluoroelastomer parts are a grey product for use as sanitary seals in food handling, beverage, and pharmaceutical applications. Kalrez® LS390 perfluoroelastomer parts are a grey product for use as sanitary seals in food handling, beverage, and pharmaceutical applications where FDA, USP <87> and <88> Class VI compliance are required. In addition, Kalrez® LS390 parts also meet Japan Pharmacopeia, edition 16. Kalrez® LS390 has been designed to address these issues by offering High hardness properties, low stiction, temperature resistance up to 220°C (428°F) and excellent chemical resistance to process chemicals, WFI (water for injection), as well as SIP and/or CIP processes. Because of its unique grey color, LS390 parts are easy to identify for proper material selection and application.
DuPont
Kalrez® 6190
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 6190 perfluoroelastomer parts are a carbon black-filled product specifically designed for custom part and high volume applications. It has excellent thermal stability good mechanical strength properties and can be used in both static and dynamic sealing applications up to 300 °C (572 °F). In addition, Kalrez® 6190 is resistant to most chemical solvents but is not suggested for use in steam, strong acids or strong bases. Please contact a Kalrez® Application Engineer to discuss performance fit in your specific application.
DuPont
Kalrez® 0090
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, O Rings
Kalrez® 0090 perfluoroelastomer parts deliver durable, reliable sealing solutions for applications requiring excellent rapid gas decompression (RGD) properties as well as high hardness, high modulus properties, and excellent extrusion resistance (even without backup rings). Potential oil and gas applications include downhole equipment such as drilling and completion tools, as well as industrial equipment including pumps, valves and compressors. Kalrez® 0090 has been certified by two independent laboratories to meet rigorous requirements for resistance to RGD. In addition to demonstrated RGD resistance, Kalrez® 0090 seals provide superior performance in regard to chemical and temperature properties. Chemical resistance: Kalrez® 0090 is resistant to chemicals encountered in the oil and gas industry, including sour process streams containing H2S. Broad temperature capability: Kalrez® 0090 retains good physical properties up to temperatures as high as 250°C (482°F) and down to 21°C (5.8°F). Under pressurized conditions, in laboratory tests, Kalrez® 0090 has demonstrated low temperature performance down to 40°C (40°F).
DuPont
Kalrez® Spectrum™ 4001
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® Spectrum™ 4001 perfluoroelastomer parts are a non-filled product which is well suited for selected high purity applications in the semiconductor industry and other markets. Kalrez® Spectrum™ 4001 has excellent chemical resistance, exhibiting low swell in organic acids, inorganic acids, esters, ketones, and aldehydes. It also offers low hardness and good mechanical properties. While Kalrez® Spectrum™ 4001 is a non-filled perfluoroelastomer, the color is black. A maximum service temperature of 275°C (527°F) is suggested.
DuPont
Kalrez® 8900
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® 8900 perfluoroelastomer parts are a black product for oxidation, diffusion, ALD, and LPCVD applications. It offers outstanding thermal stability, very low outgassing and excellent (low) compression set properties. Kalrez® 8900 parts exhibit excellent retention of physical properties at elevated temperatures, have excellent mechanical strength and are well-suited for both static and dynamic sealing applications. A maximum application temperature of 325°C (617°F) is suggested. Short excursions to higher temperatures may also be possible. Ultrapure post-cleaning and packaging is_x005F standard for all Kalrez® 8900 parts. _x005F
DuPont
Kalrez® 9500
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 9500 perfluoroelastomer parts are a tan product targeted specifically for deposition processes where ozone, ammonia and water vapor are used for processing, e.g. SACVD, FCVD, PECVD curing processes, etc. It has been specifically designed for use in applications where the plasma environment is more chemical, i.e., where oxygen and fluorine radicals are more dominant.
DuPont
Kalrez® Spectrum™ 0040
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® Spectrum™ 0040 perfluoroelastomer parts are specifically designed for low temperature environments where significant chemical resistance is required. Low temperature sealing performance (-42°C) typically unattainable for perfluoroelastomers parts is achievable with Kalrez® Spectrum™ 0040. Kalrez® Spectrum™ 0040 is an excellent choice in applications such as couplings for the chemical transportation industry or for other applications where chemical resistance and elasticity are required in some of the coldest environments. The volume swell for Kalrez® Spectrum™ 0040 is approximately 10% when exposed to nitric acid at 110°C for 168 hours.
DuPont
Kalrez® Spectrum™ 7090
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® Spectrum™ 7090 perfluoroelastomer parts are specifically targeted for use in applications requiring high hardness/higher modulus properties. These specialty black parts have excellent mechanical properties including compression set resistance, seal force retention, response to temperature cycling effects and rapid gas decompression resistance. Kalrez® Spectrum™ 7090 perfluoroelastomer parts are well suited for both static and dynamic sealing applications, especially applications that require extrusion resistance at higher temperatures. They also offer outstanding thermal stability and chemical resistance. A maximum service temperature of 325°C (617°F) is suggested. Short excursions to higher temperatures may also be possible.
DuPont
Kalrez® 8575
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, Valves
Kalrez® 8575 perfluoroelastomer parts are a white product for oxidation, diffusion, lamp anneal and RTP sealing applications. Kalrez® 8575 exhibits excellent thermal stability and long-term sealing performance, less Infrared (IR) absorption and significantly reduced outgassing properties at elevated temperatures. It also has good mechanical properties and is well-suited for both static and low stress/low sealing force applications. A maximum application temperature of 300°C (572°F) is suggested. Ultrapure post-cleaning and packaging is standard for all 8575 parts._x005F
DuPont
Kalrez® Spectrum™ 7275
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® Spectrum™ 7275 parts are a light brown product based on a proprietary crosslinking system targeted specifically for the chemical processing industry. It exhibits minimal swelling and improved retention of physical properties when exposed to aggressive chemicals, e.g., concentrated nitric acid, organosilanes, chlorosiloxanes, pure ethylene oxide, butyraldehyde, amines and vinyl and acrylic monomers. It also has excellent compression set resistance and good retention of physical properties after aging at high temperatures. A maximum service temperature of 300°C is suggested.
DuPont
Kalrez® 8085
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 8085 perfluoroelastomer parts are a beige, general purpose product for select etch, ash/strip and deposition processes. It has been formulated for minimal particle generation in NF3 plasma. Kalrez® 8085 exhibits very low particle generation and low weight loss in oxygen and fluorine-based plasmas, has excellent mechanical strength and is well-suited for both static and dynamic sealing applications (e.g., bonded slit valve doors, bonded gate valves, bonded pendulum valves, gas orifice seals, gas feedthrough seals, chamber lid seals, etc.) A maximum continuous service temperature of 240 °C is suggested. Kalrez® 8085 can also withstand short-term excursions to 275 °C. Ultrapure post-cleaning and packaging is standard for all Kalrez® 8085 parts.
DuPont
Kalrez® 9600
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 9600 perfluoroelastomer parts are designed for high purity, high temperature vacuum applications where seals are exposed to damaging Fluorine and Oxygen plasma radicals. In addition to its extremely low erosion rate and weight loss from plasma attack, this well balanced material provides excellent chemical resistance to Ammonia, Ozone, and Water Vapor. Its outstanding resilience in compression and ultra-low outgassing at high temperature conditions makes it especially suitable for applications where purity of the process environment is paramount, such as Plasma-Enhanced Atomic Layer Deposition and Chemical Vapor Deposition processes used in fabricating next generation semiconductor chips. A maximum application temperature of 315°C is suggested. Ultrapure cleaning and packaging are standard for all Kalrez® 9600 parts._x005F
DuPont
Kalrez® 8475
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 8475 perfluoroelastomer parts are a white product that have been developed specifically to meet the challenging requirements associated with oxidation and diffusion applications. It exhibits excellent thermal stability and long-term sealing performance and significantly reduced outgassing properties at elevated temperatures. Kalrez® 8475 has good mechanical properties and is well-suited for static and low stress/low sealing force applications (e.g., quartz tube seals, ball joint seals, bell jar seals, plenum seals). A maximum application temperature of 300°C (572°F) is suggested. Ultrapure post-cleaning and packaging is standard for all 8475 parts.
DuPont
Kalrez® 8002
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 8002 perfluoroelastomer parts are a clear product for ash/strip applications. This unfilled product offers excellent plasma-cracking resistance and ultra-low particle generation in oxygen and fluorine-based plasmas versus mineral-filled products. Kalrez® 8002 exhibits excellent resistance to dry process chemistry, has good mechanical strength and is well suited for static, low stress/low sealing force and select bonded door seal applications. A maximum application temperature of 275°C (527°F) is suggested. Ultrapure post cleaning and packaging is standard for all Kalrez® 8002 parts.
DuPont
Kalrez® 3018
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts, General Purpose
Kalrez® 3018 perfluoroelastomer parts are a carbon black filled product similar to Kalrez® 1050LF, except with higher hardness/modulus. This product is good in hot water/steam and offers excellent high pressure extrusion resistance. It is generally used in oil field and process industry applications where these properties, coupled with good amine and general chemical resistance, are required._x005F
DuPont
Kalrez® 3065
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 3065 is a highly-filled product containing carbon black and fiber reinforcement, designed to function without extrusion under extreme pressure. It has good all-round chemical resistance and excellent resistance to sour oil and amines. Kalrez® 3065 has an upper service temperature of 288 °C (550 °F)._x005F The mechanical properties and chemical resistance of Kalrez® 3065 make it the best choice for many oil and gas well environments. In these applications, it is normally used in the form of V-rings and other custom parts rather than O-rings.
DuPont
Kalrez® AeroSeal™ 7800
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts, Aerospace Applications
Kalrez® AeroSeal® 7800* perfluoroelastomer parts are a specialty black product that meets the requirements of Aerospace Material Specification (AMS) 7257. It offers outstanding thermal stability and compression set resistance along with excellent seal force retention properties. It also offers excellent resistance to High Thermo-Oxidative Stability (HTS) gas turbine engine lubricating oils and has excellent response to temperature cycling effects._x005F Kalrez® AeroSeal® 7800 parts have good mechanical properties and are well suited for both static and dynamic sealing applications. A maximum temperature of 325°C (617°F) is suggested. Short excursions to higher temperatures may also be possible._x005F
DuPont
Kalrez® TriLobe™ Seals
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, Valves
DuPont has developed a seal design to improve seal life in dovetail grooves. This design combines the excellent chemical, thermal and plasma resistance of Kalrez® perfluoroelastomer parts with a unique cross-sectional shape that eliminates many of the problems associated with semi-dynamic seal applications using a dovetail groove.
DuPont
Kalrez® CP222
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® CP222 perfluoroelastomer parts are the latest product for unique custom shapes or high volume applications. Kalrez® CP222 parts offer outstanding chemical resistance and mechanical properties and continue the DuPont tradition of providing high value in use perfluoroelastomer parts to extend mean time between repair (MTBR). Kalrez® CP222 can be manufactured in various custom geometries that were once beyond the reach of perfluoroelastomers. Now Kalrez® parts can be designed to fit in complex new equipment or can be a performance upgrade in existing applications.
DuPont
Kalrez® AeroSeal™ 7777
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® AeroSeal® 7777 perfluoroelastomer parts are a specialty black product that meets the requirements of Aerospace Material Specification (AMS) 7257C.
DuPont
Kalrez® AS-568
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
The dimensions and tolerances of Kalrez® O-rings are listed and conform to AS-568. DuPont and its local authorized distributors of Kalrez® parts maintain inventories of many standard AS-568 O-rings. Actual lead times will be established at the time of the order placement. We work closely with customers to understand and meet their needs.
DuPont
Kalrez® LS205
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, O Rings
Kalrez® LS205 perfluoroelastomer parts are a white product for use in food handling and pharmaceutical applications where FDA and USP & Class VI @ 121°C compliance is required. Kalrez® LS205 parts provide superior chemical resistance and low extractables in demanding applications. This product is well suited for custom parts and other non O-ring applications. A maximum application temperature of 225°C (437°F) is suggested.
DuPont
Kalrez® 9300
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 9300 perfluoroelastomer parts are a brown product for Dielectric (Oxide) Etch applications. It has been specifically designed for use in applications where the plasma environment is a combination of ions (physical) and radicals (chemical), i.e., where a balance of physical and chemical plasma erosion resistance is typically required.
DuPont
Kalrez® 7075UP
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Valve Parts, Valves
Kalrez® 7075UP perfluoroelastomer parts are a black product targeted specifically metal CVD applications. It offers outstanding thermal stability, very low outgassing and excellent compression set properties. Kalrez® 7075UP exhibits excellent seal force retention, has good mechanical properties and is well suited for both static and dynamic sealing applications. A maximum application temperature of 327°C (620°F) is suggested. Short excursions to higher temperatures may also be possible. Ultrapure postcleaning and packaging is standard for all parts made from Kalrez® 7075UP.
DuPont
Kalrez® 4079AMS
Applications: Other Packaging & Assembly Applications, Semiconductor Manufacturing, Equipment & Parts
Product Families: Parts & Shapes
Chemical Family: Fluoropolymers
Polymer Name: Perfluoroelastomer (FFKM)
End Uses: Semiconductor Applications, Pump Parts
Kalrez® 4079AMS perfluoroelastomer parts are a specialty black product that meets the requirements of Aerospace Material Specification (AMS) 7257. It offers outstanding thermal stability, excellent compression set resistance and good seal force retention properties. It also offers excellent resistance to HTS (High Thermo-Oxidative Stability) gas turbine engine lubricating oils and has good response to temperature cycling effects. Kalrez®4079AMS has good mechanical properties and is well suited for both static and dynamic sealing applications. A maximum continuous service temperature of 316 °C (600 °F) is suggested. Short excursions to higher temperatures may also be possible.
Brand Summary
Identification & Functionality
Applications & Uses
Brand Highlights
Kalrez® elastomers for specialty sealing are engineered to resist more than 1,800 chemicals while offering high temperature stability. Advantages of Kalrez® include:
- Resists over 1,800 different chemicals
- High temperature stability up to 327°C
- Maintains seal integrity
- Reduces maintenance and operating costs
- Long seal life
- Meets safety standards for pharmaceutical and food processing
- Available in standard and specialty compounds formulated for custom use
- Seals and o-rings in pumps, reactors and flange joints
- Valve stem packing systems
- High-performance parts for aerospace, oil and gas equipment, transportation, and chemical processing
- Life science applications
- Semiconductor processing
- Photovoltaic manufacturing seals
- Food contact materials
Kalrez® perfluoroelastomer (FFKM) parts withstand attack from over 1,800 chemicals, solvents and plasmas. While exhibiting excellent chemical compatibility, the Kalrez® product line delivers outstanding performance in aggressive process environments. Whether it’s resistance to acids, amines, plasma, ultrapure de-ionized water or strong bases, by selecting the Kalrez® product that is best suited to a specific application, manufacturers can improve seal performance in their operating environment. Kalrez® parts are available in a number of different compounds that are formulated to optimize properties and give the best possible performance in various chemicals and temperatures.
Fluoroelastomer O-ring (left) and Kalrez® O-ring (right). The Kalrez® O-ring exhibits less volume swell in trisolvent test
Chemical Resistance Chart
?fmt=png-alpha)
Extending Lifetime of Critical Seals in HDPCVD Processes
As the semiconductor industry continues to invest in 300 mm wafer fabrication, the spotlight is on process improvement and the greater demands this technology makes on process equipment. In HDPCVD processes elastomer sealing materials can be a weak link because of the need for seal replacement during preventive maintenance (PM) procedures.
Kalrez® Parts in Natural Gas Sampling Systems and Delivery
Transporting natural gas from well to consumer is a delivery challenge faced by industrialized nations throughout the world. In the United States alone, well over 270,000 miles of above- and below-ground pipelines are dedicated to delivering gas to the millions of households and commercial businesses that rely on natural gas for heat and energy.
Kalrez® Spectrum™ 7275 Double Seal Life in Chlorine Dioxide Service
Chlorine dioxide is a strong oxidizing gas that finds many uses as bleaching agent and disinfectant, being a more effective and safer biocide than other sources of chlorine. Most of the production of chlorine dioxide is used at paper mills for pulp bleaching.
Most Viewed Documents