Silicone O-rings

SSP Seals provides silicone O-rings that are used in various industrial applications. These O-rings are becoming fast replacements for PTFE O-rings in several applications. We can provide these O-rings in a material of choice for sanitary water systems, as well as pharmaceutical systems. SSP Seals offers silicone O-rings in white, clear, and red color. Our O-rings are phthalate free, as well as X-ray detectable.


Features of Silicone O-rings

The following information will help you decide if these O-rings are well-suited for your applications or not.

  • Silicone made O-rings can provide reliable service at temperatures as low as -70 oF and as high as 390 oF.
  • Silicone material offers excellent resistance to compression set.
  • Silicone elastomers have weak abrasion and tear resistance, as well as low tensile strength. However, they exhibit excellent weathering, as well as heat resistance.
  • Silicone elastomers strongly resist corona, ozone, and heat resistance, as well as excellent dielectric stability.
  • Silicone shows excellent flexibility at low temperatures. However, they are generally platinum cured for improving flexibility. Platinum cured silicone O-rings have better flexibility than non-cured ones, and a very low volatility. Platinum cured silicone O-rings are used in medical equipment, food and beverage applications and more because they don’t impart any odor, taste, or color.
  • Silicone made O-rings are recommended for applications where they come in contact with:
    • Hot air
    • Engine and Transmission Oils
    • Animal and Vegetable Oils
    • Greases
    • Break Fluids
    • Fire Resistant Hydraulic Fluids
  • Silicone O-rings are not recommended for applications where they come in contact with :
    • Superheated water/steam
    • Acids and alkalis
    • Aromatic mineral oils
    • Hydrocarbon based fuels
    • Aromatic hydrocarbons

To get more details about the customization process, please contact us by email at or call toll free at 888-238-SEAL (7325).

FDA Certificate of Conformance always provided for all Food Grade Parts

FDA Certificate
FDA Approved O-Rings