The more leveling agent used, the better the leveling performance?

The more leveling agent used, the better the leveling performance?

1. The adhesion of the coating deteriorates

2. The leveling performance of the coating may also have a reverse effect

3. Surface defects such as shrinkage and porosity in coatings

4. A large amount of leveling agent will lead to excessive foam in the coating, thus increasing the burden of defoaming

The amount of leveling agent used is not necessarily better. It needs to be analyzed based on the actual situation, otherwise excessive usage will lead to the occurrence of the above-mentioned defects.

Leveling agents, as a commonly used coating auxiliary material, are widely used in coatings to solve the problem of poor leveling in various systems. But many people still have questions about its dosage: does the more leveling agent added, the better the leveling performance?

In theory, the more leveling agents there are, the better the leveling performance, but specific situations should be handled more specifically. In practical applications, leveling agents have two main effects: surface smoothness and smoothness. Secondly, the flow promoting properties of paint and ink. In actual surface coatings, adding too many leveling and anti sticking agents can cause fogging or stable foaming.

So, in the testing of leveling agent samples, it is necessary to add from the ascending step to explore the appropriate value. Especially in systems with defoamers, multiple repeated tests are required to determine the appropriate dosage, and the amount added to different systems often varies.