Silicone-based defoamers are polymers with silicone backbones. These might be delivered as an oil or a water based emulsion. The silicone compound consists of a hydrophobic silica dispersed in a silicone oil.
Defoamer is also called an Anti-Foaming Agent. It is a chemical additive mixed with industrial process liquids so that the formation of foam in the industrial process liquids can be avoided. Some of the commonly used Defoamers or anti-foaming agents are insoluble oils. Non Silicone, Edible Oil Base ..