Silicones are also polymers. Polymer means many-chains. Any repeated chemical unit is a polymer. Another example is PLA (poly lactic acid) is a non-petroleum based polymer. It’s literally lactic acid.
Are you trying to say that silicone isn’t a petroleum based product?
Even if they are trying to claim that silicone isn’t a petroleum product, they are incorrect. Silicone is made of sand, and hydrocarbons that are derived from either oil or natural gas.
hydrocarbons that are derived from either oil or natural gas.
…which makes it a petroleum product.