A polymer with alternate
atoms of silicon and oxygen,
and organic groups attached to the silicon. Silicones are resistant to water
and oxidation, and are stable to heat. Liquid silicones are used for waterproofing,
as polishes and anti-foam agents. Silicone greases are high- and low-temperature
lubricants (see lubrication), and resins
are used as electrical insulators. Silicone rubbers
remain flexible at low temperatures.