In modern industrial production, the surface treatment process of metal products has received more and more attention. In order to improve the aesthetics, corrosion resistance and longevity of products, metal products need to be coated and protected. However, foam is a common problem in the painting process. Defoamer for water-based metallic paintsprovides an effective way to solve this problem.
What is a water-based metal paint defoamer?
A water-based metal paint defoamer is a chemical that is specifically designed to eliminate air bubbles in paints. It has good defoaming and foam inhibition properties, which can quickly eliminate air bubbles in the coating, so that the coating can maintain good fluidity and coatability. Water-based metal paint defoamer is widely used in various water-based coatings, inks, adhesives and other fields, and is an indispensable additive in the coating process.
How to use defoamer for water-based metal paints
The amount added: The amount of defoamer added to water-based metal paint should be adjusted according to the specific situation of the coating system. In general, according to 01%~0.5% added defoamer. The specific dosage can be determined by testing to achieve the best defoaming effect.
Add a method: Water-based metal paint defoamer can be added directly to the paint, or it can be diluted with water before adding. When adding defoamer, the paint should be stirred evenly first, and then the defoamer should be added slowly, stirring while adding to prevent the local area from being too concentrated or too thin.
Stirring time:The stirring time of the defoamer for water-based metallic paints has a great influence on the defoaming effect. The stirring time is too short, the defoamer can not be fully dispersed, and the defoaming effect is not good;If the mixing time is too long, it is easy to cause new bubbles to form in the paint. Generally speaking, the stirring time is 3 to 5 minutes to achieve a good defoaming effect.
Precautions: When using water-based metal paint defoamer, the following points should be noted
1) Choose a water-based metal paint defoamer suitable for the coating system. Different types of coatings have different requirements for defoamers, and choosing the right defoamer can improve the defoaming effect.
2) Avoid mixing with other additives. Some additives may affect the defoaming performance of water-based metal paint defoamers, so mixing with other additives should be avoided during use.
3) Pay attention to storage conditions. Water-based metal paint defoamers should be stored in a cool, dry environment, away from direct sunlight and high temperatures. At the same time, contact with corrosive substances such as strong acids and alkalis should be avoided.
In general,Defoamer for water-based metallic paintsIt is an effective means to solve the foam problem in the painting process. Through reasonable use methods and precautions, we can give full play to the defoaming performance of water-based metal paint defoamer, improve the coating quality of the coating, and create greater economic benefits for the enterprise. With the continuous development of science and technology, the performance of water-based metal paint defoamer will be more superior, bringing more convenience and value to the coating industry.