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Hifluor"! Highly Fluorinated Fluorocarbon

Highly Fluorinated Fluorocarbon

V3819-75 Hifluor"! offers superior chemical and heat resistance

V3819-75 Hifluor"! is recommended where a highly chemical resistant O-ring seal material is needed. Service in nearly all chemical environments is generally possible. V3819-75 has very broad chemical compatibility - ranging from polar solvents to acids and bases. V3819-75 is capable of withstanding continuous temperatures as high as 260°C (500°F).

Physical Properties of V3819-75
Hardness, Shore A
Specific Gravity
100% Modulus, psi
Tensile Strength, psi
Elongation, % ult.
Low Temperature Properties TR-10, °F
Compensation Set
70 hrs. @ 392°F (200°C)
70 hrs. @ 445°F (229°C)
Heat Resistance (change in hardness, pts.)
24 hrs. @ 536°F (280°C)
70 hrs. @ 536°F (280°C)
168 hrs. @ 536°F (280°C)
Recommended Operating
-13°F to 500°F
Temperature Range
(-25°F to 260°F)
Short Term Temperature Capability
536°F (280°C)
V1238-95 exhibits more than twice the extrusion resistance of standard 90 durometer materials making it the clear choice for effective sealing in severe environments requiring extreme pressure, temperature and chemical resistance. Recommended operating temperature range for V1238-95 is  15° to +400° F. Typical recommended fluids include petroleum oils, di-ester based and silicate ester based lubricants, silicone fluids and greases, halogenated hydrocarbons, acids, and selected phosphate ester fluids.
Product Capability: V3819-75 should be considered for sealing applications such as chemical processing, petroleum refining, pipeline and process instrumentation. This compound exhibits excellent compression set and low temperature flexibility in addition to wide fluid resistance.

Typical chemicals sealed with V3819-75

  • Carbon Tetrachloride
  • Ethylene Diamine
  • Formic Acid
  • Fuel FAM A
  • Fuel FAM B
  • Methylene Chloride
  • N-Methyl-2-Pyrrolidone
  • Pyridine
  • Sodium Hydroxide
  • Sulfonic Acid
  • Triethylamine