Fluorosilicone (FMVQ)

Fluorosilicone (FMVQ) Rubber Materials

An Excellent Choice for Static Sealing Applications

Fluorosilicone (FMVQ) is a hybrid of silicone and fluoroelastomer, and it is widely used in a similar manner to silicone rubber. While it will not be the right choice for all sealing, gasket, and O-ring operations, fluorosilicone does offer unique benefits in the right environment. For example, its ability to maintain its higher temperature stability and mechanical properties make it worth the higher cost for manufacturers seeking the best possible sealing material. Fluorosilicone is most commonly used for static seals like those found in hydraulic and fuel systems in the automotive industry but can be used for other applications. It is not recommended for use in dynamic sealing applications. If you would like to learn more about the potential advantages of fluorosilicone for your sealing needs, please contact our team.

Is Fluorosilicone Right for Sealing Needs?

Understanding the Benefits of Fluorosilicone Rubber Materials

As you weigh your different material options, consider the many advantages of fluorosilicone, a clear elastomer with low odor and taste and superior color stability. The material has a wide operating temperature range and great electrical properties. Other benefits include:

  • Ability to be used with jet fuels and some petroleum oils
  • Resistance to chlorinated solvents and oxidizing chemicals
  • Resistance to compression
  • Resistance to aging, weathering, and sunlight
  • Heat resistance up to 350° F (177° C)
  • Cold flexibility down to -100° F (-73° C)

It is important to also understand that fluorosilicone may have several disadvantages depending on your precise material needs. For example, the material does not perform well in environments that demand high abrasion resistance. It offers low wear resistance and is not resistant against compounds like brake fluids, amines, and ketones. Because it is time-consuming to produce, the cost of fluorosilicone is also greater compared to other elastomers. Our team is here to help you weigh the advantages and disadvantages and determine the best possible material for your sealing application.

Learn More About Fluorosilicone

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