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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.