How to use industrial paint defoamer

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How to use industrial paint defoamer？
By : Zilibon Chemical

2025/1/15
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Industrial paint defoamer is an auxiliary agent used in the production process of coatings and paints to reduce or eliminate the generation of foam. The appearance of foam not only affects the fluidity and appearance of the coating, but may also affect the drying speed of the coating and the final coating quality. Therefore, the use of defoamers is particularly important in the formulation of industrial paints.

First of all, the selection of industrial paint defoamers should be determined according to the type of coating and the use environment. There are many types of defoamers on the market, including silicon-based defoamers, polyether defoamers and organic defoamers. Silicon-based defoamers generally have good defoaming effects and are suitable for water-based coatings and oil-based coatings; while polyether defoamers are suitable for water-based coatings and have good compatibility.

When using defoamers, it is usually necessary to adjust according to the specific formulation and foaming conditions of the coating. It is generally recommended to add defoamers during the stirring process of the coating to ensure that it can be fully dispersed in the coating. The specific dosage is usually between 0.1% and 1% of the total formulation. The specific dosage can be determined through small-scale experiments to achieve the best defoaming effect.

Secondly, the timing of adding defoamers is also very important. Generally, it is recommended to add defoamers in the final stage of the coating, so as to avoid the defoamer being affected by mechanical shear during the stirring process and reducing its effectiveness. After adding, it needs to be fully stirred to ensure that the defoamer is evenly dispersed and works.

In practical applications, the effect of defoamers is also affected by many factors, such as the viscosity, temperature and stirring speed of the coating. Therefore, when using defoamers, the foaming of the coating should be closely observed and adjusted as needed.

Finally, the use of defoamers can not only improve the quality of the coating, but also improve production efficiency. By reducing the generation of foam, the drying time of the coating can be shortened, thereby improving production efficiency and product quality. Therefore, in the production process of industrial paint, it is very important to use defoamers reasonably.
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How to use industrial paint defoamer？