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Physical & Mechanical Properties / Chemical Resistance / Thermal Properties / Environmental Performance / Viton® Rubber Applications

What is Viton® Rubber?

Viton® rubber is a high-performance fluoroelastomer polymer (FKM) that was originally introduced to the aerospace industry in 1957. Utilization of Viton® quickly eventually spread to other industries including automotive, chemical, fluid power and appliance.

Viton® is a highly fluorinated polymer, so it offers exceptional performance in extremely hot and corrosive environments. It also offers superior resistance to aging, oxidizers, ozone, oils and various chemicals. However, Viton® has limited use in low temperature environments.

There are also multiple grades available for Viton® rubber, including copolymers and terpolymers. Common grades of Viton® include hexafluoropropylene, tetrafluoroethylene and vinylidene fluoride. Additonally, Viton® was also the first elastomer of its kind to earn ISO 9000 registration worldwide.

Viton® is a registered trademark of DuPont Performance Elastomers.

Read below for advantages and properties of Viton® rubber:

Advantages of Viton Rubber

  • FDA Compliant
  • Compliant with Strict Environmental Regulations
  • Wide Temperature Range
  • Exceptional Temperature Stability at Extreme Highs
  • Chemical Compability: Fuel oils, hydraulic oil, vegetable oils, high octane gasoline, alcohols, diluted acids and more

Properties of Viton Rubber

  • ASTM D-2000 Classification HK (Standard Classification System for Rubber Products in Automotive Applications)
  • Chemical Definition: Vinylidienefluoridehexafluropropylene
  • Abbreviations: FKM


  • Transfer Molding
  • Injection Molding
  • Compression Molding

Physical & Mechanical Properties

  • Durometer: 50 – 95 Shore A
  • Tensile Strength: 500 – 2,000 PSI
  • Elongation (Range %): 400% – 500%
  • Abrasion Resistance: Fair – Good
  • Adhesion to Metal: Good – Excellent
  • Adhesion to Rigid Materials: Fair – Good
  • Compression Set: Good – Excellent
  • Flex Cracking Resistance: Fair – Good
  • Impact Resistance: Good
  • Resilience & Rebound: Poor – Fair
  • Tear Resistance: Fair – Good
  • Vibration Dampening: Fair – Good

Chemical Resistance

  • Dilute Acids: Good – Excellent
  • Concentrated Acids: Good – Excellent
  • Organic Acids (Dilute): Fair – Good
  • Organic Acids (Concentrated): Poor – Good
  • Inorganic Acids: Good – Excellent
  • Alcohols: Fair – Excellent
  • Aldehydes: Poor
  • Dilute Alkalies: Fair – Good
  • Concentrated Alkalies: Poor
  • Amines: Poor
  • Animal & Vegetable Oils: Excellent
  • Non-Petroleum Brake Fluids: Poor – Fair
  • Diester Oils: Good – Excellent
  • Alkyl Phosphate Esters: Poor
  • Aryl Phosphate Esters: Excellent
  • Ethers: Poor
  • Aliphatic Hydrocarbon Fuels: Excellent
  • Aromatic Hydrocarbon Fuels: Excellent
  • Extended Fuels (Oxygenated): Excellent
  • Halogenated Solvents: Good – Excellent
  • Halogenated Hydrocarbon: Good – Excellent
  • Ketones: Poor
  • Lacquer Solvents: Poor
  • LP Gases & Fuel Oils: Excellent
  • Mineral Oils: Excellent
  • Oil Resistance: Excellent
  • Aromatic Petroleum: Excellent
  • Non-Aromatic Petroleum: Excellent
  • Ammonia Refrigerant: Poor
  • Refrigerant Halofluorocarbons: R-11, R-12, R-13
  • Refrigerant Halofluorocarbons with Oil: R-11, R-12
  • Silicone Oil: Excellent
  • Solvent Resistance: Excellent

Thermal Properties

  • Low Temperature Range: -30º F – 0º F
  • Minimum for Continuous Use (Static): +10º F – -30ºF
  • Brittle Point: 0º F – -40ºF
  • High Temperature Range: +450º F – +500ºF
  • Maximum for Continuous Use (Static): +500ºF

Environmental Performance

  • Colorability: Good – Excellent
  • Flame Resistance: Good – Excellent
  • Gas Permeability: Good – Excellent
  • Odor: Good
  • Ozone Resistance: Excellent
  • Oxidation Resistance: Excellent
  • Radiation Resistance: Fair – Good
  • Steam Resistance: Good – Excellent
  • Sunlight Resistance Good – Excellent
  • Taste Retention: Fair – Good
  • Weather Resistance: Excellent
  • Water Resistance: Excellent

Applications of Viton Rubber

  • Hoses
  • Diaphragms
  • Accumulator bladders
  • Fuel seals
  • Gaskets
  • Fuel injection seals
  • Fuel hose components
  • Gaskets
  • O-rings

Aircraft Components

  • T-Seals
  • O-rings
  • Siphon hoses
  • Radial lip seals
  • Manifold gaskets
  • Cap-seals

Automotive Components

  • Gaskets
  • Seals
  • O-rings

Qualiform ISO Certified Viton Rubber Manufacturer

Qualiform is an ISO-certified Viton® rubber manufacturer with a diverse catalog of high-precision custom rubber molding services. We can mold standard OEM replacement stars as well as custom finger lengths and configurations. With Qualiform, customers can develop a recycling star for their application or media processing! Contact our expert technical staff for consultation on design and property requirements.

Qualiform is an industry leader in Viton® rubber processing, development and testing. Our precision rubber manufacturing services include rubber molding, rubber compression moldingrubber injection moldingrubber transfer molding, and rubber to metal bonding. Our expertise also allows us to offer reliable problem-solving capabilities in all areas of rubber molding and rubber-to-metal bonding. As a result, Qualiform can create custom rubber molding solutions for nearly any application.

Qualiform offers 40+ years of experience in custom rubber molding and manufacturing, so you can depend on Qualiform to create the high-quality rubber parts you need. Contact the Qualiform technical staff at (330) 336-6777 to learn more about how we can help you.

Qualiform Proprietary Blend

In addition to our Viton® rubber materials, Qualiform offers a proprietary blend with reinforcing fibers. Qualiform directly blends reinforcing fibers into the material. As a result, the Viton® has enhanced resistance to abrasions and impacts as well as improved durometer, toughness and performance. Qualiform also offers this blend for our other available materials:

  • Butyl Rubber
  • EPDM Rubber
  • Natural Rubber
  • Neoprene Rubber
  • Nitrile Rubber
  • Rigid & Flexible Rubber
  • Synthetic Rubber
  • Thermoplastic Elastomers (TPE)
Factors Affecting Rubber Tolerances
Interested in Viton® Rubber or Qualiform’s other rubber materials? Contact Qualiform today to receive expert material recommendations.