Defoamer, as a chemical additive, aims to quickly destroy foam in liquid and prevent its regeneration, and is widely used in various industrial fields, including the construction industry. According to their chemical composition and mechanism of action, defoamers can be divided into organic silicon type, polyether type, mineral oil type, and

composite type. Each type of defoamer exhibits different efficacy and adaptability in specific environments.

In the construction industry, the production and application of concrete, mortar, paint and other materials often produce a lot of foam, which affects the material performance and construction quality. Foam not only reduces the material density and increases the water consumption, but also may lead to structural strength decline and surface

defects. Therefore, the application of efficient defoamers has become the key to improving the quality of building products and construction efficiency.