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 acids, hydrocarbons, H2S and amines – ensuring reliable sealing in downhole tools and reactors while minimizing swelling and 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.
Excellent 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.
Low Outgassing in Vacuum
FFKM O-Rings release minimal volatile compounds, preventing contamination in high-vacuum systems like semiconductor etch tools and satellite components.
Precision Tolerances & Customization
FFKM O-Rings meet exact OEM specifications with tight tolerances. They support custom compounds for requirements like API 6A compliance in petrochemical applications.
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Hardness
70 to 90 Shore A
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Temperature Range
-40° C to +315° C
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Colours
Any color per customer specification.

| Trade Name | Material | Hardness | Low Temp (°C) | High Temp (°C) | Properties |
|---|---|---|---|---|---|
| Vertex F 01ED | FFKM | 90±5 | -10°C | +230°C | VERTEX F01 ED is an FFKM 90 Sh-A compound specifically developed for Explosive Decompression Resistance. |
| Vertex F 02 | FFKM | 75±5 | -10°C | +230°C | VERTEX F02 is an FFKM 75 Sh-A compound developed for Excellent Chemical and Steam Resistance. |
| Vertex F 02LT | FFKM | 75±5 | -40°C | +230°C | VERTEX F02 LT is an FFKM developed for Excellent Chemical and Low temperature Resistance. |
| Vertex F 03HT | FFKM | 75±5 | -10°C | +315°C | VERTEX F03 HT is an FFKM 75 Sh-A compound developed for Excellent High Temperature Resistance. |
| Vertex F 04HT | FFKM | 90±5 | -10°C | +315°C | VERTEX F04 HT is an FFKM 90 Sh-A compound developed for Excellent High Temperature Resistance. |
| Vertex F 05 | FFKM | 80±5 | -10°C | +250°C | VERTEX F05 is an FFKM 80 Sh-A compound developed for Excellent Chemical and Steam Resistance |
| Vertex F 06HT | FFKM | 80±5 | -10°C | +315°C | VERTEX F06 HT is an FFKM 80 Sh-A compound developed for Excellent High Temperature Resistance. |
| VERTEX F07 LT | FFKM | 90±5 | -40°C | +240°C | VERTEX F07 LT is an FFKM 90 Sh-A compound developed for Excellent Chemical and Low temperature Resistance. |
| VERTEX F09 M | FFKM | 75±5 | -20°C | +270°C | VERTEX F09 M is an FFKM75 Sh-A compound developed for Excellent Chemical and Steam Resistance. |
| VERTEX F10 M | FFKM | 90±5 | -10°C | +250°C ( Intermittent: +270°C ) | VERTEX F10 M is an FFKM 90 Sh-A compound developed for Excellent Chemical and Steam Resistance. |
| VERTEX F 16 | FFKM | 85±5 | -20°C | +300°C | VERTEX F 16 is an FFKM 90Sh-A compound developed for High Temperature and RGD Resistance. |
Connect with ISMAT for fast quotes, custom compound engineering and precision seals built for your toughest oilfield, aerospace or reactor challenges.
ISMAT’s Vertex F Series FFKM seals outperform standard FKM and elastomers like NBR or HNBR with fully fluorinated chemistry for universal resistance to harsh chemicals—acids, alkalis, amines, ketones and more. Preventing degradation where FKM fails under prolonged exposure. With 10+ tailored variants certified for extreme reliability, they offer low gas permeability and minimal compression set, ensuring leak-proof performance in high-stakes 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 Molding Precision: ISMAT controls every stage from raw compound mixing to advanced injection/compression molding and cryogenic deflashing – delivering tighter tolerances, flash-free surfaces and faster lead times than competitors relying on outsourced molding.
Custom Compound Formulations: Tailored FFKM blends optimized for specific challenges like H2S resistance in downhole tools, equivalent to standard off-the-shelf options.
Proven Global Certifications: ISO 9001 compliance, backed by rigorous in-house testing (thermal cycling, chemical immersion) that meets OEM specs for projects with giants like ONGC, Boeing and ExxonMobil.
Lifecycle Cost Leadership: Exceptional compression set ensures reliable long-term sealing, reducing replacement frequency and operational downtime in refineries—backed by decades of proven performance in ISMAT’s industrial sealing niche.

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.










As an autonomous producer, we rank among India's top providers of precision FFKM O-rings for extreme environments.
Contact us for high-performance FFKM O-rings, custom elastomers and sealing solutions that meet global industry standards