Silicone compounds exhibit the most optimal overall temperature range of all currently available elastomers.


Silicone O-Rings Description:

Silicone O-Rings contain Silicone rubber, an elastomer composed of silicone—itself a polymer—containing silicon together with carbon, hydrogen & oxygen. Silicone rubber is generally non-reactive, stable, and resistant to extreme environments. Silicones should be considered to be non-petroleum resistant, but useful in specific high anline point petroleum oils.

Silicone is the general name given to a family of polymers that include any synthetic compound consisting of repeating units of siloxane. Siloxane can be described accurately as a chain of alternating oxygen and silicone atoms with carbon and/or hydrogen being the frequent additives. Silicone O-rings are the perfect sealing materials for application in static, high-temperature environments. They have an amazing flex and fatigue life, strongly resist ozone and UV radiation, and have physiologically neutral and insulating properties. Silicone O-rings can be made with a wide variety of properties and compositions which allows for greater flexibility and better performance.


Poor Wear Resistance, Excellent Comp. Set Resistance, Poor Short-Term Resilience, Excellent Permeation Resistance.

Temperature Range:

-65ºF to 450ºF

Recommended For:

Dry Heat, Wide Temperature Range, Sunlight, Ozone, Weathering, Odorless and Non-Toxic

NOT Recommended For:

Ketones (MEK), Acids, Silicone Oils, Brake Fluids


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The most common AS-568 American standard sizes are..

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