Viton® (fluorocarbon rubber, FFKM) has excellent resistance to high temperatures, ozone, oxygen mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals making it a good choice for an o-ring material.
Viton® is a synthetic rubber and fluoropolymer elastomer, which is commonly used in O-rings and molded or extruded products. There are four families of Viton® polymers, with a varying fluorine content between 66% and 70%. There are the main grades are A (Dipolymers of VF2/HFP); B (Terpolymers of VF2/HFP/TFE); F (Terpolymers of VF3/HFP/TFE); and specialty types (such as GLT, GBLT, GFLT & Viton® Extreme).
Low-temperature resistance is normally not favorable and for static applications is limited to approximately -15°F (-26°C) although in certain situations it is suitable down to -40°F(-40°C). Under dynamic conditions, the lowest service temperature is between 5°F and 0°F (-15°C and -18°C).
Gas permeability is very low and similar to that of butyl rubber. Special fluorocarbon compounds exhibit an improved resistance to acids, fuels, water, and steam.
- Excellent Heat Resistance
- Excellent resistance to oils and chemicals
- Low compression set
- Good fuel resistance
- Excellent ozone and weather resistance (oxidation, sun, climat conditions, fungus, mold)
- Engine oil seals
- Fuel systems
- High-Temperature Seals
- Petrochemical Systems
Seal & Design is a leading supplier of Viton® O-rings and custom molded seals. We offer both genuine Viton® and standard fluorocarbon materials for general-purpose and high-performance applications. Selecting the type of Viton® that best fits your application is important, but it isn’t complicated, and help is available from Seal & Design. We also offer gaskets made out of Viton®.
For more information visit Seal & Design’s Website.