High-Performance FFKM O-Rings Manufacturer
3-5 Days Fast Delivery
Why Settle for Long Lead Times and High Costs?
When your critical applications demand the ultimate sealing performance, you cannot afford downtime. Our premium FFKM sealing solutions offer the exact same chemical and thermal integrity as industry-leading brands—delivered in 3-5 days for Oring.
Exceptional Chemical Resistance
Virtually inert to over 1,800 chemicals, including hot amines, steam, strong acids, alkalis, and organic solvents.
Extreme Thermal Stability
Maintains sealing integrity under continuous service temperatures from -40°C up to +327°C.
Ultra-Low Outgassing
Semiconductor-grade FFKM compounds cleanroom-manufactured to prevent contamination in vacuum and plasma environments.
Rapid Custom Manufacturing
Standard sizes in stock. Custom shapes, bonded parts, and non-standard sizes engineered to your drawings in days, not weeks.
FFKM Grade Product
Select the specialized FFKM grade tailored to your operating environment. Each category is optimized for maximum reliability and extended service life.
High Temperature FFKM O-Ring
Engineered for continuous operation up to 325°C and short-term exposure up to 350°C, providing reliable sealing in high-temperature environments.
Low Temperature FFKM Seal
Maintains excellent elasticity and sealing performance down to -40°C, making it ideal for low-temperature and outdoor industrial applications.
FDA FFKM O-Ring
Manufactured with FDA-compliant compounds for applications requiring high purity, chemical resistance, and hygienic performance.
Steam Resistant FFKM
Optimized to withstand repeated steam sterilization and hot water exposure while maintaining long-term sealing performance.
Plasma Resistant FFKM
Offers outstanding plasma resistance, ultra-low particle generation, and extended service life for advanced semiconductor manufacturing.
RGD Resistant FFKM O-Ring
Engineered to resist Rapid Gas Decompression (RGD), reducing seal damage and improving reliability in high-pressure systems.
Seamless Cross-Reference to Major Brands
Our FFKM compounds are chemically and physically equivalent to industry standards. Switch seamlessly and reduce your sealing budget without compromising on quality or performance.
Request Equivalency Chart- Kalrez® (DuPont) equivalent grades (e.g., 6375, 7075, 4079)
- Chemraz® (Greene Tweed) equivalent grades
- Perlast® / Tecnoflon® equivalent grades
High-Performance Applications
Velmo FFKM O-rings deliver uncompromising sealing performance across the world's most demanding and aggressive industrial environments.
Semiconductor Manufacturing
Plasma etching, CVD, PVD, ALD and wafer processing equipment.
Chemical Processing
Reliable sealing for pumps, valves, reactors and aggressive chemicals.
Pharmaceutical & Biotechnology
High-purity sealing for sterile production and analytical equipment.
Food & Beverage
FDA-grade FFKM for hygienic processing and cleaning systems.
Oil & Gas
RGD-resistant sealing solutions for high-pressure applications.
Aerospace
Reliable performance under extreme temperatures and harsh environments.
Vacuum Systems
Low-outgassing seals for high and ultra-high vacuum applications.
Electronics Manufacturing
Precision sealing for advanced electronics production equipment.
Why Choose Us
Fast Delivery. Reliable Materials. Controlled Quality.
From standard products shipped in 3–5 days to custom FFKM solutions, we provide direct manufacturing support designed to reduce lead times and purchasing risk.
3–5 DAYS
Fast Delivery
Standard FFKM O-rings ship quickly to reduce downtime and keep projects moving. Avoid waiting months for critical replacement seals.
Competitive Pricing
Factory-direct supply provides reliable FFKM performance without unnecessary markups.
European Raw Materials
Selected materials from established European suppliers support consistent performance.
Quality Assured
Batch inspection, material traceability, and controlled production before shipment.
Return & Replacement
Responsive support for verified manufacturing or specification issues.
Need FFKM O-Rings Urgently?
Standard Sizes Ship in 3–5 Days.
Manufacturing Excellence
With 15 years of dedicated experience in high-performance FFKM sealing solutions, Velmo operates state-of-the-art production facilities. Explore our manufacturing capabilities, rigorous quality certifications, and our active presence at major international industrial exhibitions.
Production Facilities
Precision Molding
Rubber Mixing Mill
Vulcanizing Press
Mold Inventory
Curing Oven
Cryogenic Deflashin
Hardness Tester
Optical Measuring System
Industry-Leading Certifications
Ensuring uncompromising quality, safety, and compliance across all heavy industrial and chemical processing applications.
ISO 9001:2015
FDA certificate
FDA certificate
FDA certificate
ec Certified
ec Certified
ec Certified
ec Certified
Global Exhibitions & Partnerships
FFKM Sealing Solutions: Frequently Asked Questions
Find answers to technical and commercial inquiries to help streamline your procurement process.
Q1: What is the main difference between FKM (Viton®) and FFKM (Kalrez® equivalent)?
Q2: Can you provide direct equivalents to specific Kalrez® or Chemraz® compounds?
Q3: Do you support custom-sized FFKM seals, or do you only offer standard AS568 O-rings?
Q4: What is your typical lead time for FFKM O-rings and custom seals?
• Standard Sizes in Stock: Ship within 24–48 hours.
• Standard Sizes Out of Stock / Custom Molds: Typically manufactured and shipped within 7 to 10 working days.
Compared to the industry standard of 8 to 16 weeks from multinational brands, our agile production ensures your supply chain remains uninterrupted.