Ace Seal is a global manufacturer of custom o-rings, seals, gaskets and other molded rubber & plastic components

Fluorosilicone O-Rings, Gaskets & Seals

  • Fluorosilicone O-Rings | Fluorosilicone Gaskets & Seals

We offer fluorosilicone o-rings in all AS568 sizes, along with metric sizes. Fluorosilicone gaskets and fluorosilicone seals are also available. Numerous fluorosilicone grades are available, with durometers from 50 to 80. A variety of standard and custom colors are available to meet your needs.

Request a quote on the fluorosilicone o-rings, gaskets, and seals you need. Contact Ace Seal to place an order or to learn more.

O-Ring Products in Fluorosilicone (FVMQ)


Features of Ace Seal’s Fluorosilicone Products

  • Resistant to: fuel, oil, solvents, oxidizing chemicals, sunlight, ozone, chlorinated hydrocarbons, aromatic hydrocarbons, diester oils, diluted alkalis, toluene, benzene
  • Do not use with: brake fluids, hydrazine, ketones, adehlydes, amines
  • Operational temperature range: -75° to 400°F (-59° to 204°C)
  • Available hardness range (durometer): 50-80
  • Standard hardness: 70
  • Good compression set characteristics
  • Standard color: Blue; custom colors available upon request

What is Fluorosilicone? General Properties, Compatibility & More

Also known as FVMQ, fluorosilicone is a type of saturated rubber material. It offers good stability in extreme temperatures, similar to silicone, along with chemical resistant properties similar to fluorocarbons.

Often specified for aerospace use, fluorosilicone is a highly versatile material that can be used in a wide range of sealing applications, including outdoor applications and those that experience sunlight, ozone, and chlorinated or aromatic hydrocarbon exposure. FMVQ offers good compression set characteristics and high resistance to fuel, oil, and solvents. This material maintains these properties in temperatures from -75° to 400°F (-59° to 204°C).

Fluorosilicone is ideal for static sealing applications, but is not recommended for dynamic sealing operations, due to limited physical strength, a high coefficient of friction, and low abrasion resistance.

If fluorosilicone is not chemically compatible with your application, view our chemical compatibility chart to find the material for you need.

Popular fluorosilicone trade names include Silastic LS and FSE.

Fluorosilicone vs. Silicone

Fluorosilicone exhibits mechanical and physical characteristics very similar to silicone. Fluorosilicone offers greater fuel and oil resistance than silicone, but lower hot air resistance.

Contact Us for Fluorosilicone Gaskets, O-Rings & Seals

Make Ace Seal your first choice for custom fluorosilicone o-rings, gaskets, and seals. Request a quote today or contact us for more information.