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.
Silicone O-Ring Temperature and Resistance Chart
Service Temperature Range |
Resistances |
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Low Temp. Range, °F | Abbv. | High Temp. Range, °F | Compr. Set | Oils | Steam | Weather/ UV |
Fuels | Acids/ Solvents |
Bases | Abrasion Wear | Permeation |
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Popular Allorings Compounds |
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Compound | Relative Price |
Relative Availability |
Low Temp ° F | High Temp ° F | Durometer | Color | Special Features |
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S1000
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-75 | 400 | 70 | Orange |
FDA
Food and beverage grade compound. FDA compliant.
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S1005
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-75 | 400 | 50 | Orange |
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S1015
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-65 | 500 | 70 | Orange |
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S1037
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-65 | 400 | 70 | Clear-Translucent |
FDA
USP
Ultra clean compound for use in medical and pharmaceutical applications. Manufactured and packaged in a clean room.
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S1043
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-100 | 400 | 50 | Orange |
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S1083
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-65 | 400 | 70 | Clear-Translucent |
FDA
USP
Medical and pharmaceutical grade compound. NOT manufactured or packaged in a clean room. For clean room MFG, see S1037.
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Common Silicone Names:
Silicone, VMQ, PVMQ
Trade Name:
Silastic®, Elastosil®, Thermoflex®
Features:
- 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
Limitations:
- 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
Service Temperature:
- -90 to 500° F (-68 to 260° C). Depending on compound and application.