Ace Seal offers fluorocarbon o-rings, seals, and gaskets manufactured from Viton®. We can provide Viton® o-rings, seals, and gaskets in all standard sizes, as well as in custom configurations to meet the specific needs of your application, including FDA, NSF, and 3A requirements.We manufacture Viton® o-rings, seals, and gaskets using a variety of common resins

Characteristics of Viton® O-Rings, Seals & Gaskets

• Temperature range: -20°F to 400°F (-29°C to 204°C)

• Standard hardness: 70-75 Shore A

• Hardness range: 50-95

• Standard colors: black, brown

Viton® Chemical Compatibility & Characteristics

If Viton® is not compatible with your application, view our chemical compatibility chart to find the right material for your specific needs.

• Acid resistance:              Excellent
• Flame resistance:          Excellent
• Heat resistance:             Excellent
• Oil resistance:                 Excellent
• Ozone resistance:         Excellent
• Weather resistance:    Excellent
• Dynamic resistance:   Good to excellent
• Set resistance:               Good to excellent
• Tensile strength:          Good to excellent
• Abrasion resistance:  Good
• Chemical resistance: Good
• Impermeability:          Good
• Tear resistance:           Fair to good
• Water steam resistance: Fair to good
• Cold resistance:           Fair
• Electrical properties: Fair

What is Viton®?

General Properties, Compatibility & More

Viton® is a specific brand of synthetic rubber and fluoropolymer elastomer that is commonly used to manufacture chemical resistant o-rings, seals, and gaskets. The material is categorized as an FKM material under ASTM D1418 and ISO 1629 standards. Viton® is known for its high density—over 1,800 kg/m³—which is significantly higher than most other types of rubber, which generally top out at approximately 1,520 kg/m³.

Viton® sealing products are resistant to high temperatures, petroleum products, solvents, and a wide range of chemicals. In general, this material is compatible with hydrocarbons, but incompatible with acetones, ketones, steam, hot water, and organic acids.

Viton® Fluorocarbon Options

The Viton® family of fluorocarbon materials is comprised of copolymers of HFP (hexafluoropropylene) and VDF or VF2 (vinylidene fluoride); terpolymers of TFE (tetrafluoroethylene), VDF (vinylidene fluoride), and HFP (hexafluoropropylene); and PMVE (perfluoromethylvinylether) containing specialty additives. Most grades of Viton® include 66-70% fluorine content.

A (Dipolymers of VF2/HFP)

Type A Viton® polymers are used for general purpose o-rings, gaskets, and seals, including automotive and aerospace applications. These materials feature 66% fluorine content.

B (Terpolymers of VF2/HFP/TFE)

Type B Viton® polymers are formulated for use in chemical processing plants, power/utility applications, and the like. These materials include 68% fluorine content.

F (Terpolymers of VF2/HFP/TFE)

Type F Viton® o-rings, seals, and gaskets are highly resistant to oxygenated automotive fuels, concentrated aqueous inorganic acids, water, and steam. Fluorine content of these materials is roughly 70%.

Specialty Viton® Materials

Specialized types of Viton® include GLT, GBLT, GFLT, and Viton® extreme (polymers of TFE/propylene and ethylene/TFE/PMVE). These materials are ideal for automotive applications, oil exploration, special sealing requirements, and ultra-harsh environments.

Custom Viton® Approvals

Utilizing specialty compounds and processes, Ace Seal can provide Viton® o-rings, etc., to meet the following specifications:

• FDA
• Class IV
• UL
• Mil-Spec
• 3/A