DuPont Kalrez - Sealing Devices

1 DuPont Kalrez . perfluoroelastomer parts reliable, long-term Sealing in extreme chemical and thermal environments You Can Rely on DuPont Kalrez Sealing Solutions in the Harshest Processing Environments Engineered for optimum performance Reduce fugitive emissions For over 40 years, DuPont has been Kalrez and Kalrez Valve Stem Packing relentless in pursuing improvement in the Systems can help you reduce leaks manufacture of perfluoro elastomer parts. and fugitive emissions for improved Elastomeric parts typically consist of compliance with environmental three components: a polymer chain (the regulations.)

2 Because Kalrez parts backbone of the elastomer), a crosslinking maintain their Sealing integrity, you system (which links the polymer chains reduce your risk of environmental together and is the key to elasticity and non-conformance. Sealing performance), and a filler system (used to enhance mechanical properties). Maintain process purity Based on our extensive experience, Kalrez parts help prevent process DuPont adjusts these components to contamination by: optimize seal performance. Resisting degradation in harsh Reduce maintenance costs chemicals DuPont Kalrez parts help stretch your Maintaining Sealing force at high mean time between repair (MTBR) temperatures to re duce leakage and lower your maintenance costs.

3 Containing fewer ingredients that Their durability minimizes unscheduled extract into the pro cess downtime while letting you extend time between routine inspections Providing lower outgassing in vacuum and replacement cycles for critical Sealing components. Meeting stringent FDA regulations for purity and cleanliness Increase productivity By reducing the frequency of seal ISO 9001 quality assured with full changes, repairs and inspections, you can traceability increase process and equipment uptime Kalrez parts are made only by DuPont , a for greater productivity and yield. fully integrated manufacturer of Vespel.

4 Parts and shapes, Viton fluoro elastomers Increase safety and Neoprene rubber polymers, as well Lasting longer and performing better than as perfluoroelastomer parts. Kalrez parts other elastomers, Kalrez helps reduce are manufactured in ISO 9001 quality the risk of chemical exposure from certified facilities and packaged in a bar- seal failure. coded bag for full traceability. 2. DuPont Kalrez Offers a Variety of Products to Meet Your Application Needs The DuPont Kalrez product line has Purity in food and pharmaceuticals Other demanding applications been specifically designed to deliver The regulatory requirements of the Because of its exceptional chemical and outstanding performance in aggressive food and pharmaceuticals industries temperature resistance, Kalrez was process environments.

5 Whether it's require increased awareness and first used in aerospace and downhole resistance to acids, amines, ultrapure stricter guidelines regarding product applications. Its outstanding resistance de-ionized water, strong bases or high safety. Kalrez parts for pharmaceutical to fuels, additives, lubricating oils and temperatures, by selecting the Kalrez . applications offer cleanliness and corrosive chemicals has made Kalrez the part that is best suited to a specific chemical inertness with the resilience of product of choice in the most aggressive application, manufacturers can improve a true elastomer.

6 With its combination of environments where seal failure is seal performance in their operating thermal and chemical performance and unacceptable. environment. rubber-like Sealing ability, Kalrez offers the pharmaceutical industry a new level Broad chemical and temperature of protection against conta mination and resistance in chemical/hydrocarbon seal failure. processing Processing environments in chemical Electronics and hydro carbon plants are running Kalrez parts help reduce the total hotter, longer and with more aggressive operating cost of wafer processing, chemicals. In order to increase meantime photovoltaic manufacturing processes, between repair (MTBR) and improve and flat panel display equipment by safety, Kalrez has been the product providing longer seal life and increasing of choice.

7 The industry standard has meantime between repair. Unplanned long been DuPont Kalrez 4079, but maintenance due to incompatible Sealing increasing demands on production materials can interfere with production have called for new products with even schedules, causing downtime. Kalrez . greater performance capabilities. Today, parts can help improve Sealing reliability in the DuPont Kalrez Spectrum family of processes that use high heat, aggressive products expands on the chemical and chemicals and plasma. thermal properties of Kalrez 4079 to better meet the requirements of these applications. 3. DuPont Kalrez Delivers the Broadest Chemical Resistance Across the Board Superior chemical resistance to more Optimizing chemical resistance and than 1800 chemicals seal performance DuPont Kalrez perfluoroelastomer In order to maximize seal performance in parts have virtually universal chemical specific applications, DuPont continually resistance.

8 They withstand attack from develops new products as emerging more than 1,800 chemicals, solvents needs are discovered. In chemical and plasmas. Standardizing on Kalrez and hydrocarbon processing, a family products for broad chemical resistance of products called DuPont Kalrez . reduces your need to keep multiple Spectrum are available for better materials on the shelf, thus lowering cost overall chemical resistance and higher of inventory. thermal stability. This combination gives processors a larger operating window Minimal swell for additional chemical usage and higher Chemically induced swelling can cause temperature excursions.

9 For more O-rings and Sealing components made of specific information about the chemical other rubbers to expand out of retaining compatibility of Kalrez parts, consult the grooves, resulting in seal failures. Kalrez DuPont Chemical Resistance Guide or parts resist extreme volume swell when the Kalrez Application Guide available on exposed to a wide variety of chemicals our website or contact your Kalrez parts and solvents, including concentrated nitric authorized distributor. acid, sodium hydroxide, ethylene diamine and steam. Advancements in polymer technology have improved chemical resistance of elastomers Temperature 5 = best performance Solvents Compression set Seal force Steam retention Amines Acids Kalrez 4079.

10 Kalrez . Spectrum 6375. Kalrez . Bases Spectrum 7075. 4. DuPont Kalrez Performs in High Temperature Applications and Processes Service temperature range up to 327 C Maintains Sealing force to keep Low compression set Even after long-term exposure seals tight Kalrez parts exhibit low compression to temperatures up to 327 C As proven in ISO 3384 tests, Kalrez . set, maintaining their elastic recovery (620 F), DuPont Kalrez parts retain parts outperform other elastomers when to maintain tight seals over the long their elasticity and recovery properties it comes to Sealing force retention, a haul. Because Kalrez parts recover better than other high-temperature measure of seal life.