Authorized Dupont Distributor

Viton® Gaskets

Viton is the trade name for a fluoroelastomer that was developed by DuPont in 1957. This high-performance gasket and the seal material is an excellent selection for applications that are challenging, demanding and requires a long-lasting seal. Viton (fluoroelastomer) is often used in appliances, the automotive industry (valve stem seals, transmission seals, powertrain systems), chemical industry, fluid power industry, and the aerospace industry due to its flexibility, reliability, and its ability to perform over a wide temperature range.

Fluoroelastomer has a variety of traits that make it ideal for both low and very high-temperature and corrosive applications. It is resistant to oil, heat, and a broad range of concentrated acids. Viton (fluoroelastomer) can stand up to compression when other elastomers may embrittle at high temperatures. It’s excellent for sealing gases and aliphatic hydrocarbon fluids. Fungus, mold, weather, atmospheric oxidation and sun do not affect Viton (fluoroelastomer).

Aerospace

High-performance gaskets that have high heat, oil and fuel resistance.  These are manufactured using Viton A, which has a high resistance to corrosive oils and lubricants that act as a solvent to other rubbers and Viton, which provides superior resistance to engine lubricants and fuels.

Power & Utility

Gaskets for use in compressors, turbines and engines and cable couplings that require resistance to corrosive materials and high temperatures.  Viton is used for these applications due to its ability to retain its flexibility after dry heat aging.  It is recommended by the FSA for use in power generating equipment.

Petrochemical

Gaskets for process equipment that are resistant to corrosive fluids. Viton is used in this industry and offers superior resistance to the corrosive materials found in petrochemical environments, and Viton provides chemical resistance and excellent flexibility to keep seals secure.

Oil & Gas

Sealing gaskets that can withstand harsh environments, such as corrosive fluids and weather extremes, and heavy use.  Viton was developed for use in this industry and provides a solution to the difficult sealing challenges resulting from exposure to oil and gas.

Grades of Viton

There are a few different grades of Viton that have various Fluorine levels. Higher fluorine levels give fluoroelastomer greater chemical resistance, but its low-temperature flexibility is lessened as the percentage of fluorine increases.

  • Viton “A,” which has 66% fluorine, is ideal for applications that involve direct sun, severe weather conditions, and oxidation. This rubber gasket material can also withstand fuels, lubricants, and oils.
  • Viton “B” contains 68% fluorine, which adds to its ability to resist both concentrated and diluted acids. Upon dry heating, Viton “B” maintains its flexibility and elastic properties. This material is suitable for power generating systems, as it resists sulfur dioxide.
  • Viton “GF” features 70% fluorine, allowing it to surpass both Viton “A” and “B” in chemical resistance. Due to its exceptional fluid resistance and low permeation even in extreme environments, it is designed for industries that use modern lubricants, blended chemicals, and oxygenated fuels.

M&P Sealing carries a wide variety of fluoroelastomers to fit every need and every application. From rolls 1/64” to 1/4″ thick and 36” to 48” wide, custom thickness, widths, and shapes are available from M&P Sealing. We can die cut and waterjet cut gaskets to meet your exact requirements. We can also supply an adhesive backing to all grades of material. M&P Sealing has over 60 years of experience with fluoroelastomers and other gasket and seal materials. Contact us to learn more about our capabilities and how we can help you with your next project.

Each grade of fluoroelastomer has a remarkable temperature range. In dynamic applications, it can tolerate temperatures down to -10° F (-23° C). Specific formulations allow fluoroelastomer to be utilized in static applications with temperatures down to -65° F (-54° C). In continuous applications, Viton (fluoroelastomer) can endure temperatures up to 400° F (204° C) with occasionally high temperatures up to 500° F (260° C).

Fluoroelastomers go by a few different trade names depending on the specific manufacturing company. Dai-El is Daikin Industries’ name for their fluoroelastomer, while Solvay identifies their material as Tenoflon. Dyneon manufacturers a fluoroelastomer that goes by its company name (Dyneon). Fluoroelastomers are also recognized by different abbreviations. FPM is an international abbreviation for fluoroelastomer according to DIN/ISO, and FKM is ASTM’s abbreviation for the gasket and seal material.

The following are the most popular fluoroelastomers offered by M&P Sealing:

  • Industrial Grade Fluoroelastomer is an industrial-grade material that is a combination of Polyacrylates and fluoroelastomer polymer. It is cost-effective and has excellent chemical resistance, allowing it to hold up well at temperatures up to 350° F (176° C).
  • Commercial Grade Fluoroelastomer is made entirely of fluoroelastomer and is a commercial-grade material. This material also has a high chemical resistance and can handle temperatures up to 400° F (204° C).
  • Premium Grade Fluoroelastomer is a premium grade gasket and seal material made from terpolymer type “B” fluoroelastomer. This is made for high-temperature applications up to 450° F (232° C). It is also FSA-DSJ-401-09 compliant for flue duct expansion joints.
  • FDA White Viton is an off-white 65 durometer FDA compliant Viton manufactured using 100% virgin Viton. This material has a 66% level of Fluorine and meets the Viton Type “A” requirements.
  • Style Closed Cell Sponge is a Viton closed cell sponge with skin on all sides. This material is designed for extreme applications that require a compressible material. Closed cell Viton offers the same oil, chemical, acid, ozone, sunlight and heat aging resistance as our solid Viton elastomers and is an excellent gasket material.