Silicone is a polymer and is considered to be a part of the rubber family. In general terms, we treat silicone as a form of plastic since it has properties such as clarity, flexibility, malleability, water and UV resistance, etc.
It can also be shaped like plastic under temperature into pretty much anything. Silicone finds use in many fields of medicine, consumer products, mould-making, fashion, electronics, cookware and many others.