1、slow dry solvents

Such as high boiling point aromatics, ketones, esters, ether and ether esters, tetrachloraphthalene, etc. They can adjust the volatilization rate of solvent and solubility of resin, so that the film in the drying process, with a more balanced volatilization rate and dissolution force, to prevent the solvent volatilization too fast, too high viscosity and impede the flow of the film, resulting in poor leveling disadvantages, and can prevent the solvent volatilization too fast caused by poor solubility of the base material, precipitate resulting in shrinkage phenomenon.

2、 organic silicon flow ping agent

Can strongly reduce surface tension, prevent shrinkage, improve leveling. Provide short wave leveling and early leveling.

3、 acrylic ester or modified acrylate and flow ping agent

Commonly used acrylic homopolymer or copolymer, can reduce the surface tension of the coating to a certain extent and improve the wettability of the substrate and shrinkage resistance, and because of its limited compatibility with the coating and can quickly migrate to the surface of the coating to form a single molecular layer, so that the surface tension uniformity, inhibit the solvent volatilization rate, improve the surface fluidity, eliminate orange peel, brush marks and other defects, Make the film smooth and flat. This kind of leveling agent has little influence on the recoating between the coatings, and is not affected by the curing temperature, and can be used for primer, varnish, color paint and baking paint system. Fluorine-modified acrylate polymer has a very low surface tension, so it has a strong advantage in reducing surface tension, preventing film shrinkage and improving flow, leveling and other aspects, and has little influence on recoating, is a non-silicone resin anti-shrinkage, leveling agent with excellent comprehensive performance.