Solvent based coatings are still widely used in specific fields due to their excellent adhesion and decorative effects. However, a large amount of foam is easily produced during solvent volatilization, which affects the construction efficiency and coating quality. Therefore, mastering the defoaming technology of solvent based coatings is crucial.

The solvent volatilization, pigment dispersion and stirring operation in solvent based coatings are easy to cause foam.

Physical defoaming methods such as ultrasound and vacuum defoaming are suitable for laboratory or small-scale production. Chemical defoaming is the most commonly used method in industry to destroy the structure of foam by defoamer. The commonly used defoamers for solvent based coatings include organosilicon, mineral oil, and compound types.

Develop new efficient defoamer on the road of technical innovation, improve the defoaming speed and durability, optimize the coating formula, and reduce the source of foam generation. Introduce intelligent production equipment to achieve precise control of the defoaming process. Faced with environmental pressure, solvent based coatings need to constantly innovate and reduce VOC emissions. At the same time, we will strengthen the research and development of defoaming technology to ensure coating quality and improve construction efficiency.