English professional name: Leveling agent, leveling agent is a commonly used coating auxiliary, which can promote the coating to form a flat, smooth and uniform coating film in the process of drying and film formation. It is a kind of substance that can effectively reduce the surface tension of the finishing liquid and improve its leveling and uniformity. It improves the permeability of the finishing solution, reduces the possibility of spots and stains when brushing, increases coverage, and makes the film even and natural. Mainly surfactants, organic solvents, etc. There are many types of leveling agents, and the types of leveling agents used in different coatings are also different. High boiling point solvents or butyl cellulose are available in solvent-based finishes. In water-based finishing agents, surfactants, polyacrylic acid, carboxymethylcellulose, etc. are used.
