Defoamer is a chemical additive that can significantly reduce the surface tension of liquids, thereby eliminating or suppressing the generation of bubbles. In the construction industry, defoamers are widely used in the preparation and construction process of materials such as concrete, mortar, and coatings to ensure the stability of construction

quality and material properties. There are various types of defoamers commonly used in the construction industry, which can be classified into organic silicon type, mineral oil type, polyether type, etc. based on their main components. Different types of defoamers have different characteristics and applicability, and should be selected according

to specific construction needs.

Defoamers destroy the stable layer on the surface of bubbles, reducing their surface tension and causing the bubbles to quickly rupture and dissipate. At the same time, some defoamers can also form a thin film on the surface of bubbles, preventing the generation of new bubbles.

When selecting defoamers in the construction industry, the following principles should be followed: choose the appropriate defoamer based on the specific construction environment and material characteristics. Ensure that the defoamer can quickly and thoroughly eliminate bubbles. Defoamers should have good compatibility with the

materials and additives used to avoid side effects. On the premise of ensuring quality, choose a cost-effective defoamer.