It is better to add defoaming agent to waterproof coating in the formula
With the development of science and technology, waterproof technology is also constantly improving. For example, nanotechnology is used in coatings to enhance the water resistance and stain resistance of coatings through the action of nanoparticles. At the same time, the performance of waterproof coating defoaming agents is also constantly improving, which further enhances the anti-foaming properties of coatings.
The main purpose of adding a defoaming agent to the waterproof coating formula is to prevent bubbles or foam on the coating surface and ensure the coating quality during construction. Here are a few reasons why adding a defoamer is necessary:
1. Reduce surface tension: Certain ingredients in the paint (solvents, additives, etc.) may cause the paint to form surface tension during construction, which will cause the formation of bubbles. Defoaming agents can reduce the surface tension of paint, making it easier to apply smoothly during application and reducing the generation of bubbles.
2. Destroy surface foam: During the coating construction process, tiny bubbles may be generated in the coating due to stirring, air agitation or other reasons. If these bubbles are not destroyed, they will form obvious foam on the surface, affecting the appearance and performance of the coating. Defoaming agents can quickly act on these tiny bubbles, causing them to burst and dissipate.
3. Improve process performance: Adding an appropriate amount of defoaming agent can improve the fluidity and coating properties of the coating, making it easier to construct. This helps the paint distribute more evenly during application, reducing voids and bubbles in the coating.
It should be noted that the amount of defoaming agent added to waterproof coatings should be moderate. The use of too much defoaming agent may cause changes in coating properties and even affect other properties of the coating. Therefore, when using defoaming agents, you should follow the recommendations and formulas provided by the manufacturer and accurately control the amount of defoaming agent used.
