FFKM O-Rings, also known as Perfluoroelastomer O-Rings, are premium seals engineered for the harshest conditions where conventional materials fail. ISMAT’s FFKM O-Rings ensure leak-proof performance in high-stakes applications, leveraging our 40+ years of industrial experiance in high-performance sealing solutions.
These perfluoroelastomer FFKM O-Rings feature a fully fluorinated structure, providing near-universal chemical compatibility against acids, solvents, amines and steam. Ideal for industries demanding zero downtime, they reduce maintenance costs through exceptional durability.

Universal Chemical Resistance
FFKM O-Rings resist aggressive chemicals, including concentrated acids, hot hydrocarbons, H2S and amines. This enables reliable sealing in oil & gas downhole tools and chemical reactors without swelling or degradation.
Extreme Temperature Stability
FFKM O-Rings operate continuously from low to very high temperatures. They maintain integrity in aerospace jet engines, refinery flare systems and semiconductor plasma chambers under thermal cycling.
Ultra-Low Compression Set
FFKM formulations show minimal permanent deformation after prolonged compression. This results in longer service life in high-pressure valves and pumps compared to standard perfluoroelastomer O-rings.
Zero Outgassing in Vacuum
FFKM O-Rings produce minimal volatile emissions. They prevent contamination in vacuum systems such as etch tools and satellite hydraulics.
Superior Abrasion Resistance
FFKM O-Rings withstand mechanical wear from particulates in dynamic sealing. This applies to reciprocating pumps and drilling rigs in abrasive oilfield environments.
Precision Tolerances & Customization
FFKM O-Rings achieve tight tolerances through CNC machining. They meet exact OEM specs and support custom compounds for requirements like API 6A compliance in petrochemical applications.
ISMAT’s FFKM O-Rings stand out in competitive markets like oil & gas, aerospace and chemical processing due to these key differentiators:
In-House Machining Excellence: As India’s leading fully autonomous producer, ISMAT controls every stage—from raw compound mixing to precision CNC machining—ensuring tighter tolerances and faster lead times than outsourced competitors.
Custom Compound Formulations: Tailored FFKM blends optimized for specific challenges, like H2S resistance in downhole tools or plasma etch in semiconductors, outperforming off-the-shelf Kalrez® or Simriz® equivalents.
Proven Global Certifications: ISO 9001, AS9100D and API 6A compliance, with rigorous in-house testing (thermal cycling, chemical immersion) that meets or exceeds OEM specs for giants like ONGC, Boeing and ExxonMobil projects.
Lifecycle Cost Leadership: Exceptional compression set and abrasion resistance extend service life over standard FFKM, minimizing shutdowns in refineries or jet engines—backed by decades serving ISMAT’s industrial sealing niche.

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Hardness
50 to 90 Shore A
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Temperature Range
-60° C to +260° C
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Colours
Wide range of colours such as white, green, red, yellow, blue etc.

At ISMAT, we pride ourselves on being a trusted global partner for high-performance sealing solutions. With 40+ years of industry experience, we leverage our deep technical knowledge and innovative spirit to deliver cutting-edge products that meet and exceed our clients' expectations.
Quality is at the core of everything we do. Our stringent quality control processes ensure that each product is meticulously tested and meets the highest standards. This unwavering commitment to quality has earned us the trust and loyalty of clients worldwide.
With a robust global network and a presence in key markets, ISMAT is well-positioned to serve clients around the world. Our local support teams are always ready to provide personalized assistance, ensuring seamless communication and prompt service.
Our customers are at the heart of our business. We listen closely to their needs and work collaboratively to develop solutions that drive their success. Our customer-centric approach ensures that we build long-lasting relationships based on trust and mutual growth.