What is FFKM?

FFKM (Perfluoroelastomer) is the most advanced elastomer material available today. It combines the chemical resistance of PTFE (Teflon) with the elasticity of traditional rubber, making it the gold standard for sealing applications in extreme environments.

Why Choose FFKM O-Rings?

1. Exceptional Chemical Resistance

FFKM resists over 1,800 chemicals, including:

• Nitric, hydrochloric, and sulfuric acids
• Ketones, esters, aldehydes
• Amines and steam
• Hydrocarbon solvents

Ideal for aggressive chemical processing where standard elastomers like FKM (Viton®) degrade quickly.

2. Superior High-Temperature Performance

Withstands continuous temperatures up to +327°C, and short-term exposure beyond that. This makes FFKM ideal for:

• Hot reactive gases
• Thermal cycling environments
• Autoclave and sterilization processes

3. Minimal Outgassing & Leachables

Low contamination makes FFKM O-rings perfect for:

• Semiconductor manufacturing
• Pharmaceutical & biotechnology industries
• Food-grade sealing applications

4. Long Service Life

Reduced swelling, minimal compression set, and extreme durability mean fewer replacements, lower maintenance, and less downtime.

Industries That Trust FFKM O-Rings

• Oil & Gas: Seals for valves, pumps, and instruments exposed to sour gas or high pressure/temperature
• Chemical Processing: Reactor and flange seals in corrosive media
• Semiconductors: Sealing in plasma etching, CVD, and wafer cleaning
• Pharmaceutical & Food: Sterile barrier applications requiring FDA-compliant, non-leaching materials
• Aerospace & Defense: High-reliability seals under extreme thermal and chemical stress

FFKM vs FKM: A Quick Comparison

Property	FFKM	FKM (Viton®)
Chemical Resistance	Excellent (most media)	Good (limited acids & amines)
Max Continuous Temp	~327°C	~200–230°C
Compression Set	Low	Moderate
Swelling in Solvents	Very Low	Moderate to High
Cost	Premium	Moderate

FFKM is ideal where failure is not an option.

Available from RMT: Lanson Polymers FFKM O-Rings

At Reliability and Machinery Trading LLC, we are the official distributor of Lanson Polymers, providing high-performance FFKM O-rings and custom sealing solutions across the UAE and GCC.

We Offer:

• Standard and custom O-ring sizes
• FDA, USP Class VI, and explosion-proof rated compounds
• Technical consultation for critical applications
• Emergency delivery and sealing failure troubleshooting