Powder coating, as an environmentally friendly and efficient coating material, is widely used in fields such as automobiles and home appliances. Although the powder coating is not easy to produce foam in the melting and curing process, attention should be paid to foam control in spraying, recycling and other links. Factors such as air mixing during spraying and electrostatic effect between powder particles may cause foam.

Powder coating defoamers need to have characteristics such as high temperature resistance, non-volatile, and not affecting coating performance. Common types of defoamers include organic silicon powder, inorganic powder, etc.

In the formulation design stage of powder coating, add an appropriate amount of defoamer to prevent foam. Optimize the spraying process to reduce air infiltration. Clean the recovery system regularly to prevent foam caused by powder accumulation.

With the continuous advancement of powder coating technology, the application of defoamers will become more widespread and precise, providing strong guarantees for high-quality coating of powder coatings.