What Are Silicones?
Silicones are produced by first reacting silicon—one of the earth's most common elements- with methyl chloride, combined with further reaction with water which removes the chlorine atom. These reactions produce polymers that essentially combine some of the physical qualities of a metal with the diversity of plastics.
Although they can contain organic components such as oxygen, hydrogen, and carbon, they have an inorganic (Si-O) backbone and are defined as inorganic or hybrid substances. Silicones are generally more stable and inert than typical organic substances.