A chemical addition known as a defoamer or anti-foaming agent lowers and prevents the production of foam in industrial process liquids. Defoamer and anti-foam agent are frequently used synonymously. Defoamers, strictly speaking, remove existing foam, whereas anti-foamers stop new foam from forming.Polymers containing silicon backbones are known as silicone-based defoamers. These might be supplied as an emulsion with an oil or water basis. The silicone compound is made up of silicone oil and hydrophobic silica that has been distributed.To guarantee that the silicone distributes quickly and evenly in the foaming medium, emulsifiers are added. Other modified silicone fluids and silicone glycols may also be present in the silicone compound.