Have you ever been bothered by obvious brush marks, roller marks, or a rough surface like an orange peel on the walls during home decoration or industrial painting? These problems are often not due to the poor quality of the coating itself, but rather the lack of a crucial "beautifier" - a leveling agent. Especially in water-based coatings widely used under the environmental protection trend, due to the high surface tension of water and its fast evaporation rate, the paint film is prone to defects during the drying process.
The working principle of leveling agents is like applying a "beauty filter" to the coating. It is a special surfactant that can significantly reduce the surface tension of the liquid coating. When the coating is applied to the surface of an object, the leveling agent can prompt the liquid paint film to flow rapidly to the lower areas, filling in the unevenness left by the construction tools. It makes the originally uneven liquid surface become as smooth and flat as a mirror, thereby eliminating brush marks and orange peel phenomena.
In addition, excellent leveling agents can also improve the coating's wetting ability on the substrate, preventing the formation of pinholes (i.e., small pits on the paint film). It ensures that the pigments are evenly distributed in the paint film, making the final color more vibrant and having a higher gloss. It can be said that without leveling agents, water-based coatings are difficult to achieve the delicate texture required for high-end decoration. It is the bridge connecting rough construction and perfect finished products, allowing every wall to display a silky smooth beauty, and is the behind-the-scenes hero that enhances the final appearance quality of the coating.