Kalrez® O-Rings & Seals – Authorized Distributor UK, Europe & Turkey | GBC Global Business

GBC Global Business is the authorized distributor of DuPont™ Kalrez® O-rings and seals in the UK, Europe, Turkey, Middle East, and Central Asia. Our Kalrez® perfluoroelastomer (FFKM) products are designed for extreme chemical resistance, high-temperature stability up to 327°C, and long-lasting sealing performance.

Kalrez® Applications – Where Performance Matters

  • 🔬 Semiconductor Industry – Kalrez® perfluoroelastomer seals for plasma, etching, and wafer processes
  • ⚗️ Chemical Processing – DuPont™ Kalrez® seals for aggressive acids, solvents, and harsh chemicals
  • 🛢️ Energy & Oil & Gas – High temperature Kalrez® FFKM O-rings for wellheads and refinery systems
  • 🌞 Photovoltaic & Solar – Kalrez® O-rings for solar panel and photovoltaic manufacturing
  • 🚀 Aerospace & Defense – Trusted sealing in engines, fuel systems, and environmental controls
  • 💊 Pharmaceutical & Food – FDA-approved Kalrez® O-rings for pharmaceutical and food applications

Why Choose Kalrez® O-Rings Distributor in UK & Europe?

  • ✅ Resistance against 1,800+ chemicals
  • ✅ High thermal stability up to 327°C
  • ✅ Extended service life – reduces downtime
  • ✅ OEM-approved, FDA & USP Class VI compounds
  • ✅ Available in standard and custom Kalrez® grades

Kalrez® vs FKM vs EPDM – Comparison Table

Property Kalrez® (FFKM) FKM EPDM
Chemical Resistance ⭐⭐⭐⭐⭐ (1,800+ chemicals) ⭐⭐⭐ ⭐
Temperature Resistance Up to 327°C Up to 200°C Up to 150°C
Service Life Very Long Medium Short

Kalrez® Product Grades – Full Range

DuPont™ Kalrez® products are available in specialized grades for every industry. Below is the complete list of most used compounds:

Chemical Processing

  • Kalrez® 0090 – RGD resistance, high hardness. DuPont has developed Kalrez® 0090 perfluoroelastomer parts for exceptional resistance to rapid and repeated gas decompression (RGD) as well as high hardness and high modulus properties.
  • Kalrez® 1050LF – Hot water, steam & amine resistance. Material characteristics: excellent resistance to hot water and steam, excellent resistance to amines, and good compression properties. It is recommended not to exceed the maximum service temperature of 288°C (550°F) and to avoid use in high temperature organic or inorganic acids.
  • Kalrez® 3018 – Carbon black filled, high modulus. DUPONT™ KALREZ® 3018 perfluoroelastomer parts are a carbon black filled product similar to KALREZ® 1050LF, but with higher hardness/modulus.
  • Kalrez® 3065 – Oil & gas well applications. The mechanical properties and chemical resistance of DUPONT™ KALREZ® 3065 make it the best choice for oil and gas wells.
  • Kalrez® 4001 Spectrum™ – Ultra-pure applications. DUPONT™ KALREZ® 4001 perfluoroelastomer parts are an unfilled product, especially suited for select high purity applications.
  • Kalrez® 4079 – Chemical & aerospace, low compression set. Kalrez® 4079 is a low compression product for use in various components, such as O-rings, diaphragms and gaskets, in the chemical and aerospace industries. It is filled with carbon black and has excellent chemical, mechanical and hot air aging properties. It resists organic, inorganic acids and aldehydes well, but is not suitable for use with hot water/steam or some hot aliphatic amines, ethylene oxide or propylene oxide. The maximum recommended service temperature is 316°C, with short excursions to higher temperatures possible.
  • Kalrez® 6190 – High-volume applications, thermal stability. A carbon black filled product specifically designed for custom parts and high volume applications. Excellent thermal stability, good mechanical strength properties and can be used in static and dynamic sealing applications up to 300°C (572°F). Additionally, KALREZ® 6190 is resistant to most chemical solvents, but is not recommended for use in steam, strong acids or bases.
  • Kalrez® MS220 – Mechanical seals with superior resistance. DUPONT™ KALREZ® MS220 perfluoroelastomer parts are designed for mechanical seals where superior chemical resistance and reduced compression set are critical to successful sealing performance.
  • Kalrez® CP222 – Custom molded applications. DUPONT™ KALREZ® CP222 perfluoroelastomer parts are the ultimate product for unique custom shapes or high-volume applications.
  • Kalrez® 0040 – DUPONT™ KALREZ® SPECTRUM™ 0040 perfluoroelastomer parts are specifically designed for low temperature environments where significant chemical resistance (-42°C) is required.
  • Kalrez® 6375 Spectrum™ – Broad chemical and temperature range. KALREZ® SPECTRUM™ 6375 is designed to deliver exceptional performance across the widest possible range of chemistries and temperatures.
  • Kalrez® 6380 Spectrum™ – DUPONT™ KALREZ® SPECTRUM™ 6380 perfluoroelastomer parts are a non-black product, developed specifically for chemical processes involving hot, aggressive amines.
  • Kalrez® 7075 Spectrum™ – Valves, flanges, mechanical seals. DUPONT™ KALREZ® SPECTRUM™ 7075 perfluoroelastomer parts are the material of choice for mechanical seals, valves, flanges and other demanding chemical and hydrocarbon processing applications.
  • Kalrez® 7090 Spectrum™ – DUPONT™ KALREZ® SPECTRUM™ 7090 perfluoroelastomer parts are specifically intended for use in applications requiring high hardness/higher modulus properties.
  • Kalrez® 7275 Spectrum™ – DUPONT™ KALREZ® SPECTRUM™ 7275 is designed to deliver exceptional performance in aggressive chemical environments.
  • Kalrez® 7375 Spectrum™ – DUPONT™ KALREZ® SPECTRUM™ 7375 perfluoroelastomer parts are an innovative FFKM product based on a patented cross-linking system for applications in the chemical process industry where broad chemical and water/steam resistance at elevated temperatures is needed.
  • Kalrez® 7390 Spectrum™ – Steam & hot water resistance. KALREZ® SPECTRUM™ 7390 perfluoroelastomer seals are designed to meet the most severe applications in contact with chemicals, hot water and steam – based on a cross-linking system of which Dupont™ is proprietary, KALREZ® 7390 parts can meet the FFKM 90 SH specifications. Produced in different shapes for applications where superior mechanical resistance is required.

Semiconductor

  • Kalrez® 6375 UP – Strong acid/base resistance. Converting raw semiconductor materials into a useful device requires hundreds of chemical processing steps. A significant number of these steps involve the use of aggressive acids, solvents, and bases, such as amines, to clean, wash, etch, or remove unwanted substances and contaminants from the wafer surface. However, these chemicals can attack elastic seals, causing swelling and degradation or leaching of unwanted metals and ions that affect the functionality of the integrated circuit.
  • Kalrez® 7075 UP – Optimized for metal CVD. DUPONT™ KALREZ® 7075UP perfluoroelastomer parts are a black product specifically for metal CVD applications. It offers exceptional thermal stability, very low outgassing and excellent compression set properties. KALREZ® 7075UP exhibits excellent sealing force retention.
  • Kalrez® 8002 – Plasma-resistant, low particle. DuPont™ Kalrez® 8002 is a clear product ideal for ash/stripe applications. This unfilled product offers exceptional resistance to plasma cracking, as well as extremely low particle generation in oxygen- and fluorine-based plasmas compared to mineral-filled products. Additionally, Kalrez® 8002 demonstrates excellent resistance to dry process chemistry, good mechanical strength and is suitable for static, low stress/low sealing force applications and “select” bonded door seals.
  • Kalrez® 8085 – Wafer yield improvement. KALREZ® 8085 has been reported to significantly improve wafer production in a variety of plasma and semiconductor process applications where oxygen and fluorinated plasmas are used during the cleaning cycle.
  • Kalrez® 8475 – High purity thermal processes. KALREZ® 8475 perfluoroelastomer parts are a white product specifically developed to meet the demanding requirements associated with lamp annealing and RTP sealing applications and in semiconductor thermal processes.
  • Kalrez® 8575 – KALREZ® 8575 perfluoroelastomer parts are a white product for “select” etch, ash/stripe and deposition applications.
  • Kalrez® 8705 – KALREZ® 8705 perfluoroelastomer parts are primarily designed for sealing locations in the direct path of high-energy ultraviolet (UV) radiation emitted from a conventional light source or plasma.
  • Kalrez® 8775 – Excellent amine resistance. KALREZ® 8775 is a black product for semiconductor applications that offers excellent amine resistance, resistance to aggressive aqueous media, superior overall chemical resistance, excellent compressive strength and a superior service temperature of 300°C. KALREZ® 8775 can be a suitable replacement for KALREZ® 1050 UP in wet chemistry applications.
  • Kalrez® 8900 – High-temperature vacuum use. KALREZ® 8900 perfluoroelastomer parts are a black product for all thermal processes, such as oxidation, diffusion furnace, metal CVD, ALD and LPCVD. It offers exceptional thermal stability, very low outgassing and excellent (low) compression set properties.
  • Kalrez® 9100 – PECVD and HDPCVD applications. KALREZ® 9100 is an amber translucent product targeted specifically for PECVD and HDPCVD processes. It also showed excellent performance in “select” engraving processes.
  • Kalrez® 9300 – Plasma environments, dielectric etching. DuPont™ Kalrez® 9300 perfluoroelastomer parts are a brown product suitable for dielectric (oxide) etching applications. This product has been specifically designed for use in plasma environments that combine “physical” ions and “chemical” radicals. In other words, it is ideal where a balance between “physical” and “chemical” plasma erosion resistance is required.
  • Kalrez® 9500 – CVD process resistance. The extraordinary properties of Kalrez® 9500 in resistance to CVD and ash/streak process chemistry, i.e. ozone, ammonia and water vapor, make it a reliable material. Furthermore, it offers high thermal stability, very low outgassing and remarkable mechanical resistance.
  • Kalrez® 9600 – Oxygen & fluorine plasma resistance. DuPont™ Kalrez® 9600 perfluoroelastomer components are designed for high-purity, high-temperature vacuum applications where seals are exposed to harmful fluorine and oxygen plasma radicals.
  • Kalrez® W240 UP – Wet process semiconductor seals. DuPont™ Kalrez® W240UP perfluoroelastomer components are designed for semiconductor wet processes, such as wafer cleaning tools, wet etch tools, coating development tools, and filters/pumps/valves . Kalrez® W240UP can help increase process reliability and meet market needs in the most demanding wet applications.

Pharmaceutical & Food Applications

  • Kalrez® 6221 – White FDA-approved grade. DUPONT™ KALREZ® 6221 perfluoroelastomer parts are a white product that provides superior chemical resistance and low contamination in pharmaceutical and food handling applications where FDA compliance is required. DUPONT™ KALREZ® 6221 parts are suitable for WATER FOR INJECTION (WFI) systems, STEAM-IN-PLACE (SIP) cleaning and other critical systems. Thermally stable up to 260°C (500°F), allowing them to be used in phase II sterilization processes, where other elastomers lose their sealing ability.
  • Kalrez® 6230/6230A – Black FDA & USP Class VI compliant. DUPONT™ KALREZ® 6230/6230A* perfluoroelastomer parts are a black product that provides superior chemical resistance and low contamination in pharmaceutical and food handling applications where FDA compliance is required. DUPONT™ KALREZ® 6230/6230A parts are suitable for WATER FOR INJECTION (WFI), STEAM-IN-PLACE (SIP) cleaning and other critical systems. Thermally stable up to 260°C (500°F) which allows them to be used in phase II sterilization processes, where other elastomers lose their sealing ability.
  • Kalrez® LS205 – Low extractables, gray compound. DUPONT™ KALREZ® LS205 perfluoroelastomer parts provide superior chemical resistance and low levels of extractables in demanding applications for use in food handling and pharmaceutical applications where FDA compliance is required.
  • Kalrez® LS390 – Sanitary seals for food & pharma. DUPONT™ KALREZ® LS390 perfluoroelastomer parts are a gray product for use as sanitary seals in food, beverage and pharmaceutical handling applications where FDA, USP <87> AND <88> CLASS VI compliance is required.

Energy & Oil & Gas

  • Kalrez® 0090 – Rapid gas decompression resistance. DuPont has developed Kalrez® 0090 perfluoroelastomer parts for exceptional resistance to rapid and repeated gas decompression (RGD) as well as high hardness and high modulus properties.
  • Kalrez® 1050 LF – Oilfield applications. Material characteristics: excellent resistance to hot water and steam, excellent resistance to amines, and good compression properties. It is recommended not to exceed the maximum service temperature of 288°C (550°F) and to avoid use in high temperature organic or inorganic acids.
  • Kalrez® 3018 – Oilfield applications. DUPONT™ KALREZ® 3018 perfluoroelastomer parts are a carbon black filled product similar to KALREZ® 1050LF, but with higher hardness/modulus.
  • Kalrez® 3065 – Oilfield applications. The mechanical properties and chemical resistance of DUPONT™ KALREZ® 3065 make it the best choice for oil and gas wells.
  • Kalrez® OG193 – Best for gas decompression + chemical resistance. This product offers excellent performance in oil and gas applications. It combines the best rapid gas decompression and chemical resistance with good thermal stability.
  • Kalrez® 0040 Spectrum – Best for gas decompression + chemical resistance. DUPONT™ KALREZ® SPECTRUM™ 0040 perfluoroelastomer parts are specifically designed for low temperature environments where significant chemical resistance (-42°C) is required.
  • Kalrez® 6375 Spectrum – Best for gas decompression + chemical resistance. KALREZ® SPECTRUM™ 6375 is designed for exceptional performance across a wide range of temperatures and chemicals.
  • Kalrez® 7075 Spectrum – Best for gas decompression + chemical resistance. DUPONT™ KALREZ® SPECTRUM™ 7075 perfluoroelastomer parts are the material of choice for mechanical seals, valves, flanges and other demanding chemical and hydrocarbon processing applications.
  • Kalrez® 7090 Spectrum – Best for gas decompression + chemical resistance. DUPONT™ KALREZ® SPECTRUM™ 7090 perfluoroelastomer parts are specifically intended for use in applications requiring high hardness/higher modulus properties.
  • Kalrez® 7375 Spectrum – Best for gas decompression + chemical resistance. DUPONT™ KALREZ® SPECTRUM™ 7375 perfluoroelastomer parts are an innovative FFKM product based on a patented cross-linking system for applications in the chemical process industry where broad chemical and water/steam resistance at elevated temperatures is needed.
  • Kalrez® 7390 Spectrum – Best for gas decompression + chemical resistance. KALREZ® SPECTRUM™ 7390 perfluoroelastomer seals are designed to meet the most severe applications in contact with chemicals, hot water and steam – based on a cross-linking system of which Dupont™ is proprietary, KALREZ® 7390 parts can meet the FFKM 90 SH specifications. Produced in different shapes for applications where superior mechanical resistance is required.

Photovoltaic & Solar Sealing Solutions

  • Kalrez® 9100 – PECVD and plasma processes. KALREZ® 9100 is an amber translucent product targeted specifically for PECVD and HDPCVD processes. It also showed excellent performance in “select” engraving processes.
  • Kalrez® PV8070 – Solar cell manufacturing. DuPont™ Kalrez® PV8070 perfluoroelastomer components are a black product for photovoltaic cell manufacturing processes requiring high temperature resistance, including doping for n-type layer formation (bulk c-Si), diffusion for thermal diselenide plant (CGIS) and TCS-based thermal CVD for polysilicon feedstock production. for the production of polysilicon feedstock.
  • Kalrez® W240 – Superior sealing in wet processes. DuPont™ Kalrez® W240 perfluoroelastomer components are a black product for photovoltaic wet manufacturing processes that require a wide range of chemical resistance. photovoltaic systems requiring a wide range of chemical resistance. W240 offers an excellent combination of properties (acid/base resistance) and is the preferred product for wet processes as an upgrade over standard elastomers. standard elastomers, such as FKM, NBR, EPDM, etc. We suggest a maximum serving temperature of 230°C. suggested.

Frequently Asked Questions – Kalrez® Seals

Q1: Why choose Kalrez® O-rings over FKM and EPDM?
A: Kalrez® lasts 5–10 times longer under extreme chemical and temperature conditions compared to standard elastomers.

Q2: Are Kalrez® seals FDA approved?
A: Yes, compounds like Kalrez® 6221 and LS series are FDA and USP Class VI certified.

Q3: How fast is delivery?
A: GBC Global Business keeps stock in the UK & Turkey for immediate dispatch across Europe, Middle East & Central Asia.

Video – DuPont™ Kalrez® Introduction

Why Partner with GBC Global Business?

  • 🌍 Fast delivery from UK & Turkey warehouses
  • 💰 Competitive pricing
  • 📦 OEM-certified genuine Kalrez® products
  • 🔍 Technical support & application consulting

Request a Quote

Looking for Kalrez® O-rings distributor in UK and Europe?
Contact GBC Global Business today for expert advice and competitive pricing.

High temperature Kalrez® FFKM O-rings up to 327°C

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