Leveling agent is a type of chemical substance added to liquid materials such as coatings and inks. Its main function is to improve the leveling performance of the liquid after application, making the coating surface smoother and more uniform. According to their different chemical structures and modes of action, leveling agents can be divided into several categories: solvent based leveling agents, reactive leveling agents, thixotropic leveling agents, and organic silicon leveling agents.

The mechanism of action of leveling agents is mainly reflected in two aspects: firstly, by reducing the surface tension of the coating, it promotes the wetting and spreading of the coating on the substrate; The second is to adjust the rheological properties of the coating to suppress defects such as sagging and shrinkage during the drying process, thereby achieving the desired leveling effect.

Leveling agents are widely used in various fields such as automotive coatings, architectural coatings, wood coatings, ink printing, etc. In automotive painting, leveling agents can significantly improve the glossiness and smoothness of the paint; In architectural coatings, it helps to reduce brush marks and orange peel phenomenon, and improve the overall aesthetics of the coating.

When selecting leveling agents, it is necessary to comprehensively consider the formulation system of the coating, construction conditions, substrate characteristics, and the performance requirements of the final coating. Meanwhile, it is also necessary to pay attention to the compatibility of leveling agents with other additives to ensure the stability and application performance of the coating.