Viton® O-Rings

Fluorocarbon Elastomer

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Viton O-Rings

Viton O-Rings

Viton O-Rings

Viton V91A O-Rings

Viton® (fluorocarbon rubber) 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.

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.

Viton® O-Ring General Attributes

  • Excellent Heat resistance
  • Excellent resistance to oils
  • Low compression set
  • Good fuel resistance
  • Excellent ozone and weather resistance

Common Applications for Viton® O-Rings

  • Engine Oil Seals
  • Fuel Systems
  • High Temperature Seals
  • Petrochemical Systems

Available Varieties

Flurocarbon Compuond Available Specifications Key Characteristics Average Temperature Ranges
Commercial ASTM D2000 Available in black or brown. Excellent resistance to head and a wide range of chemicals. 5° to 446°F
AMS7276 AMS 7276,
Mil-R-83248 CL1,
Dwg AS3208,
Meets AMS7276. Excellent resistance to heat, engine oils and lubricants, ozone and weathering. Low compression set and good fuel resistance. -13° to 392°F
AMS7259 AMS 7259,
Mil-R-83248 CL2,
Dwg AS3581
Meets AMS7259. Similar to AMS 7276 above except in 90-durometer hardness. -13° to 392°F
M83485/1 GLT Type M84385/1,
Meets AMS-R-83485. Excellent heat resistance and low temperature performance. GLT Type Viton. -35° to 400°F
GFLT Viton ASTM D2000 / SAE J200,
M7HK 710 A1-10
EF31 Z1 Z2 Z3
GFLT based FKM. Good for low temp with improved chemical resistance. Listed for fuel/alcohol applications. -31° to 392°F
FDA Viton ASTM D2000 /
SAE J200
M2HK 710 A1-10
B38 EF31 F15 Z
FDA, USDA, and NSF grades available. -4° to 392°F
Viton Extreme Extreme chemical service. Strong bases and amines. Peroxide cured. -4° to 392°F
Viton V91A Low Temperature applications. Explosive decompression resistant. -51° to 437°F
Viton O-Rings

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®.

Contact Seal & Design Inc. for more information about our Viton O-Rings offerings or for more information about other gasket compounds visit Seal & Design's Website.