Silicon based defoamers are a type of specialty chemical additive used to reduce or eliminate foam in industrial processes. They are typically composed of a combination of silicones, fatty acids and other ingredients. They work by breaking the surface tension of bubbles and allowing them to break apart, thereby reducing or eliminating foam and improving process efficiency. Silicon based defoamers are used in a wide range of industries, including food and beverage, paper and pulp, pharmaceutical, and oil and gas.