Silicone

Not to be confused with the chemical element Silicon.

Silicone caulk can be used as a basic sealant against water and air penetration.

Silicones (/'sIlIkən/) are polymers that include any inert, synthetic compound made up of repeating units of siloxane. This is a functional group of two silicon atoms and one oxygen atom frequently combined with carbon and/ or hydrogen. They are typically heat-resistant and rubber-like. Silicones are used in sealants, adhesives, lubricants, medicine, cooking utensils, and thermal and electrical insulation. Some common forms include silicone oil, silicone grease, silicone rubber, silicone resin, and silicone caulk. Silicone is also used for cosmetics. Silicone has very little to do with the element silicon (/'sIlIkən/).

Silicone Media

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  Chemical structure of the silicone polydimethylsiloxane (PDMS)

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  This silicone rubber folding chessboard resists creasing and wrinkling.

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  Silicone caulks and rubber components are often used in automotive applications.

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  Silicone is often used to seal maintenance access openings in aerospace equipment.

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  Silicone 3d print with support material

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  Example of silicone rubber keypad in translucent silicone with legends

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  Red-colored silicone firestopping

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  Silicone grease is often used with laboratory glassware to prevent seizing.

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  Silicone mold used to reproduce an architectural detail