Solvent-based defoamer in the coatings industry

Jul 28, 2025

During the preparation and construction of coatings, the appearance of foam is not only an aesthetic defect, but also directly affects the performance and construction efficiency of the coating. Solvent-based defoamers, with their unique formula design, have become the key item to solve this foam.

This article will explore in depth the working principle, advantages and characteristics of solvent-based defoamers.

 

Solvent-based defoamers are a type of defoaming product with volatile solvents as the main carrier. They usually contain hydrophobic particles, emulsifiers and solvents, which can penetrate into the foam core in a short time and effectively destroy the foam structure.

 

 

Working principle and advantages of solvent-based defoamers:

 

1. Rapid penetration: The solvent components in solvent-based defoamers can quickly diffuse and disperse to the foam surface, accelerating the defoaming process.

 

2. Effective and lasting: Hydrophobic particles have excellent surface activity and can significantly reduce surface tension. Even a small amount of addition can achieve ideal results.

 

3. Widely applicable: Applicable to various solvent systems, especially in oil-based systems, and is not easy to cause coating defects.

 

Application of solvent-based defoamers in the coating industry:

 

1. Manufacturing stage: During the mixing process of coating production, high-speed stirring easily introduces air to form foam. Adding an appropriate amount of solvent-based defoamers can prevent the generation of foam and improve product quality.

 

2. Construction stage: During the spraying operation, the spray gun pressure and coating viscosity may cause foam residue. Solvent-based defoamers can eliminate foam in time, avoid problems such as holes and bubbles, and enhance the appearance of the coating.

 

Solvent-based defoamers have become an indispensable chemical for coating manufacturers due to their effectiveness and wide applicability.

 

With the continuous improvement of scientific research, more environmentally friendly and multifunctional solvent-based defoamers are gradually entering the market, ensuring that the coating industry moves to a higher level.

 

 

 

 

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