Viton Seal Compatibility

Chemical processing industries use strong piping seals, or gaskets, for the prevention of liquid or gas leaks during chemical production and distribution. Viton seals will not deteriorate when exposed to many different chemicals.

Identification

A Viton seal is a fluoroelastomer. Fluoroelastomers are a mixture of different polymers, or resins, used to make synthetic rubber. The resulting rubber is highly resistant to chemical and heat damage.

Compatibility

Viton seals are resistant to deterioration caused by many different types of chemicals. Petroleum-based fuels, alcohol, mineral acids, and even biofuels work well with Viton seals.

Considerations

Some chemicals cause Viton seals to swell. The seal's rubber composition swells and cracks when it's exposed to amines (ammonia), ketones (acetone), and esters (fatty acids). Determine the chemical application before installing Viton seals. Any defect in the seal from chemical reactions can cause dangerous leaks, or even explosions.

References

• Encyclopedia Britannica: Fluoroelastomer
• Problem Solving Products, Inc.: Viton O-rings and Seals
• Problem Solving Products, Inc.: Viton Chemical Resistance
• Problem Solving Products, Inc.: Biofuels: A Challenge To Elastomer Seals