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Viton® (FPM/FKM) Chemical Resistance Chart

Viton® is DuPont's brand name for FPM/FKM fluoroelastomer — the premium choice for seals and gaskets in demanding chemical environments. It offers exceptional resistance to fuels, oils, acids, and solvents, with excellent high-temperature performance up to 200°C.

1600+ chemicals tested 20°C & 50°C data Premium elastomer
Excellent (A)
Good (B)
Limited (C)
Not Recommended (D)

When to Use Viton®

✅ Excellent For

  • • Fuels (gasoline, diesel, biodiesel)
  • • Oils (motor, hydraulic, silicone)
  • • Mineral acids (sulfuric, nitric, phosphoric)
  • • Aromatic solvents (toluene, xylene)
  • • Chlorinated solvents
  • • High temperatures (up to 200°C / 392°F)

❌ Avoid With

  • • Ketones (acetone, MEK)
  • • Esters (ethyl acetate)
  • • Amines and ammonia
  • • Low molecular weight organic acids
  • • Hot water / steam
  • • Brake fluids (glycol-based)
Chemical Concentration 20°C 50°C
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Ratings: A Excellent B Good C Limited D Not Recommended NR No Data

About Viton® (FPM/FKM)

Viton® is a registered trademark of The Chemours Company (formerly DuPont) for a family of fluoroelastomers. The generic names are FPM (Europe) and FKM (USA). It's one of the most chemically resistant elastomers available, making it the premium choice for seals, O-rings, and gaskets in demanding applications.

Key Properties

  • Temperature range: -20°C to +200°C (-4°F to +392°F)
  • Density: 1.8–2.0 g/cm³
  • Hardness: 60-90 Shore A
  • Excellent ozone and UV resistance
  • Low gas permeability

Common Applications

  • Fuel system seals (automotive, aerospace)
  • Chemical pump seals and gaskets
  • Oil field equipment
  • Semiconductor manufacturing
  • Pharmaceutical processing

Viton® vs EPDM vs NBR

Viton® excels with fuels, oils, and high temperatures but struggles with ketones and amines.
EPDM is best for water, steam, and bases but fails with oils and fuels.
NBR handles oils and fuels well but has lower temperature limits and poor ozone resistance.