FFKM Molded Seals by M-Cor
Introducing our expanded product line with the latest addition of Perfluoroelastomer (FFKM) O-rings, combining our engineering expertise with advanced material solutions. These O-rings are specifically designed to meet the stringent requirements of various industries, offering unmatched chemical resistance, superior thermal stability, and exceptional mechanical properties.
M-Cor Inc recommends these alternatives to KALREZ 4079 :
Tecnoflon® PFR 95HT Perfluoroelastomer (FFKM):
Offers a broad operational range and high compression set resistance due to its peroxide curing system.
Resistant to chemicals, acids, caustics, ketones, aldehydes, esters, ethers, methanol, solvents, sour gases, hydrocarbons, steam, and hot water.
Suitable for applications ranging from –10 °C to 300 °C.
Can be used to manufacture elastomeric sealing elements like O-rings and gaskets.
Registered with the FDA for Food Contact Substances; can be used in food processing equipment.
Available as raw polymer in 1 kg and 5 kg boxes.
Normal safety precautions should be taken to avoid skin and eye contact, and breathing fumes.
Can be combined with fluoroelastomer compounding ingredients using two roll mills or internal mixers.
Tecnoflon® PFR 94 Perfluoroelastomer (FFKM):
A chemical resistant perfluoroelastomer with aggressive media sealing capabilities and excellent compression set values.
Suitable for applications ranging from -10°C to 230°C.
Offers resistance to hot organic and inorganic acids, caustics, ketones, aldehydes, esters, ethers, alcohols, fuels, solvents, sour gases, hydrocarbons, steam, hot water, ethylene and propylene oxide, mixed process streams, potent active pharmaceutical ingredients (API’s), and aggressive cleaning agents.
Ideal for steam-in-place (SIP) and clean-in-place (CIP) procedures.
Can be used to manufacture elastomeric sealing elements like O-rings and gaskets.
Registered in the FDA Inventory of Effective Premarket Notifications for Food Contact Substances and can be used in food processing equipment.
Available as raw polymer in 1 kg and 5 kg boxes.
Normal safety precautions should be taken to avoid skin contact, eye contact, and breathing of fumes.
Can be combined with the cure system and other typical fluoroelastomer compounding ingredients; its mixing can be accomplished with two roll mills or internal mixers.
Common Applications for Tecnoflon® PFR 95HT and Tecnoflon® PFR 94:
Both materials are suitable for manufacturing sealing elements (O-rings, gaskets, etc.) used in various industries, including chemical, petrochemical, food processing, pharmaceutical, aerospace, and semiconductor manufacturing.
Food Processing Applications:
Both Tecnoflon® PFR 95HT and Tecnoflon® PFR 94 are registered with the FDA for food contact.
They can be used in food processing equipment for repeated use with various food types, including non-acid and acid aqueous products, dairy products, low-moisture fats and oils, beverages, and bakery products.
Specific guidelines exist for compounding these materials for food processing, including restrictions on curatives, fillers, and process aids.
Fluid Resistance:
Tecnoflon® PFR 95HT and Tecnoflon® PFR 94 generally exhibit good resistance to inorganic and organic acids, alkalis, water/steam, ketones, esters, ethers, aldehydes, alcohols, hydrocarbons, and sour gas, with volume swelling typically less than 10%.
Both materials are not recommended for use in highly fluorinated fluids.
Properties:
Tecnoflon® PFR 94 has a specific gravity of 2.06 g/cm3, while Tecnoflon® PFR 95HT has a specific gravity of 2.05 g/cm3.
Both materials are translucent in color and are supplied in slab form.
The typical Mooney viscosity (ML (1+10’) at 121 °C) for Tecnoflon® PFR 94 is 35 MU, while for Tecnoflon® PFR 95HT, it is 75 MU.
Both materials have a dielectric constant ε’ of 3.50 and a loss factor tan(δ) of 0.030.
The linear coefficient of thermal expansion for both materials is α = 3.5 · 10–4 1/K.
Effect of Additives and Curing:
For Tecnoflon® PFR 94, the choice of fillers and curatives impacts acid resistance; MT N990 carbon black and pure curatives provide the best acid fluid resistance.
In colored compounds, barium sulfate with pure curatives is recommended.
Excellent Chemical and Thermal Resistance
Our FFKM O-rings set the standard for chemical resilience, capable of withstanding over 1,800 different chemicals. This makes them perfect for use in environments like chemical processing, semiconductor fabrication, and pharmaceutical manufacturing, where exposure to aggressive substances is common. Additionally, their ability to operate efficiently at temperatures up to 327°C ensures reliability in high-heat applications such as aerospace..
Enhanced Performance and Durability
The fully fluorinated structure of FFKM not only provides exceptional chemical and thermal resistance but also ensures these O-rings offer superior mechanical and physical properties. This includes remarkable resistance to compression set and resilience, essential for maintaining seal integrity under fluctuating pressures and temperatures..
Diverse Industrial Applications
Due to their robustness, our FFKM O-rings are versatile, finding applications across critical sectors:
– Aerospace: For components that must endure extreme temperatures and aggressive chemicals.
– Oil and Gas: Ideal for high-temperature and harsh chemical environments.
– Semiconductor Manufacturing: For processes requiring high chemical resistance.
– Pharmaceuticals and Biotechnology: Where chemical inertness and purity are crucial.
– Chemical Processing:In seals, gaskets, and O-rings exposed to aggressive chemicals and temperatures.
Our Commitment to Quality
We are committed to manufacturing excellence, ensuring that our FFKM O-rings meet the highest quality standards. They represent our dedication to providing solutions that enhance operational efficiency, reduce maintenance, and increase uptime for greater productivity and yield.
For further information and to explore how our new line of FFKM O-rings can solve your sealing challenges, please contact us.