FFKM (Perfluoroelastomer) O-Rings & Seals
Advanced sealing performance for the world’s most demanding environments
At Elplasto Innovations, we offer FFKM—also known under trade names like Kalrez®, Chemraz®, and Perlast®—for applications where extreme temperatures, aggressive chemicals, or ultra-clean conditions exceed the capabilities of standard FKM (Viton®) materials.
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What is FFKM?
FFKM (perfluoroelastomer) is the most chemically and thermally resistant elastomer class available. Unlike FKM, FFKM’s fully fluorinated backbone makes it structurally closest to PTFE (Teflon), delivering near-universal resistance and superior durability in harsh industrial settings.
Why choose FFKM?
- Higher fluorine content (>70%) versus FKM’s ~66–70%, providing enhanced chemical stability.
- Temperature range: Up to 327 °C; suitable for ultra-high-temp sealing.
- Near-universal chemical resistance, including amines, ketones, esters, steam, and strong acids.
- Highly durable, reducing maintenance and mitigating costly downtime.
FFKM vs FKM: Make the Right Choice
| Property | FKM (Viton®) | FFKM (Perfluoroelastomer) |
|---|---|---|
| Fluorine Content | ~66–70% | >70%, PTFE-like resistance |
| Temperature Range | –20 °C to ~200–230 °C | –20 °C to ~327 °C |
| Chemical Resistance | Good, but limited (fails with strong acids, ketones, steam) | Near-universal – acids, solvents, steam, amines |
| Cost | Moderate | 10–20× higher, but pays off in critical industrial use |
Elplasto’s insight: For high-performance applications—semiconductors, pharma, aerospace, oil & gas—FFKM justifies its cost through unmatched reliability.
Applications & Industries Served
Elplasto’s FFKM O-rings meet the most rigorous standards across:
- Semiconductor & wafer processing (ultra-high purity, extreme temps)
- Pharmaceutical & biotech (FDA / USP Class VI hygienic compliance)
- Aerospace & defense (engine seals, hydraulics)
- Chemical processing of aggressive media
- Oil & gas refining with hot, corrosive fluids
Why Elplasto Innovations?
Choosing Elplasto ensures:
- Comprehensive product range: different shaped molded FFKM components
- Customization galore: tailored to your exact dimensions and performance needs
- Quality you can trust: strict QC and global industrial standards
- Efficient service: rapid lead times, competitive pricing worldwide
Customer Benefits
- Maximized uptime: FFKM withstands extreme service conditions, saving maintenance costs
- Longer lifespan: Less frequent replacement equals reduced total cost of ownership
- Tailor-fit solutions: Custom grades—from Kalrez® and Chemraz® to Perlast® and specialty crosslinks
- Expert support: Application guidance from Elplasto helps you select the optimal FFKM grade
Ready to elevate your sealing performance?
Connect with Elplasto Innovations for:
- Personalized technical consultation
- Sample requests and material comparisons
- Competitive quotes on FFKM O-rings, seals, and components