Compared with the traditional acrylic levelling agent, it can reduce the surface tension of the paint film more obviously. It has instant leveling speed and excellent flat effect. It can fast wet the substrate and also has good anti-shrinkage ability. Meanwhile, it has good temperature resistance and viscosity reduction effect while does not affect the recoating performance. Besides, it has little or no side effects. This product has strong wetting ability to the substrate and has excellent compatibility. It has good leveling property in solvent-based system and can prevent the formation of fish eyes etc. This product is a fluorine-modified levelling agent with moderate fluorine content. It is extremely versatile and has a certain defoaming effect.