Silicone o-rings are excellent seal materials for static, high temperature applications. Featuring outstanding flex and fatigue life, ozone and UV radiation resistance, physiologically neutral and insulating properties, silicone o-rings are effective in a wide range of applications. Find the silicon o-ring compound property that's perfect for you in the chart below, then easily order online from the world's largest silicone o-ring inventory network.
Service Temperature Range
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Popular Allorings Compounds
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FDAFood and beverage grade compound. FDA compliant.
FDA USPUltra clean compound for use in medical and pharmaceutical applications. Manufactured and packaged in a clean room.
FDA USPMedical and pharmaceutical grade compound. NOT manufactured or packaged in a clean room. For clean room MFG, see S1037.
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Common Names: Silicone, VMQ, PVMQ
Trade Name: Silastic®, Elastosil®, Thermoflex®
- Can be compounded to meet FDA, USP Class VI, USDA, 3-A and Canada AG
- Excellent heat and compression resistance, excellent flexibility, good electrical insulator
- Excellent resistance to oxygen, ozone and sunlight, animal and vegetable oil and grease
- Resistance to fungal and biological attack
- Not recommended for dynamic application since it has low strength and poor abrasion resistance & high gas permeability
- Concentrated solvents, oils, concentrated acids, diluted sodium hydroxide, hydrocarbon based fuels, aromatic mineral oil
- Aromatic Hydrocarbons (benzene, toluene), aromatic mineral oil, acids and alkalis, Superheated water or steam over 250 F
- -90 to 500° F (-68 to 260° C). Depending on compound and application.