Description
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. Request a Quote | Download Product Brochure
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
