Mineral oil defoamer is a chemical additive for mineral oil. It is mainly used to eliminate foam and hinder the formation of foam in the industrial process. It is usually light yellow. Why should the foam in mineral oil be eliminated with mineral oil defoamer? Because if the foam is not eliminated, the appearance will be unsightly first, and even cause odor; then the production process will be slowed down and the production efficiency will be affected; too much foam overflowing makes the construction site difficult to clean, so it is necessary to eliminate the foam.