Water-based paint defoamer helps solve foam problems
Water-based paint is one of the most commonly used types of paint on the market today. Compared with traditional solvent-based paints, water-based paints are very popular because they are odorless, green, harmless to the human body, and easy to clean. However, paints that use water as the main solvent have a related problem – foam, so water-based paint defoamer is an indispensable help to solve this problem.
Water-based paint defoaming agent is a surfactant that can break the tension of the liquid surface so that the foam surface can quickly burst and dissipate. By reducing surface tension, defoaming agents can effectively reduce the number of bubbles in a liquid, preventing the formation of liquid foam and accelerating the collapse of existing foam.
Adding defoaming agents to water-based coatings has the following functions:
1. Prevent foam formation: During the production process of water-based coatings, due to stirring, mixing and other operations, air will be introduced, which can easily form foam. Defoaming agents can reduce the surface tension of liquids, prevent the formation of bubbles, and help existing bubbles collapse quickly, thereby reducing the formation of foam.
2. Improve the wettability of paint: Defoaming agents can improve the contact and wetting properties between the paint and the substrate, and reduce the bubbles generated during the construction process of the paint. This has important implications for the uniformity and quality of the paint.
3. Improve coating film quality: Foam present in the coating may affect the uniformity, gloss and appearance of the coating film. By adding defoaming agents, foam on the paint surface can be reduced or eliminated, thereby improving the quality and appearance of the paint film.
4. Improve construction efficiency: If there is a large amount of foam in the paint, you need to repeatedly eliminate the foam during construction or wait for the foam to subside on its own, which will increase the construction time and cost. Adding defoaming agents can reduce the generation of foam and improve construction efficiency.
