From the formula of influencing factors of leveling agent, it can be seen that what really drives the paint film from the uneven state to the flat state is the surface tension of the paint film, the higher the surface tension, the stronger the leveling power. Usually, the surface tension of acrylate leveling agent is higher than that of silicone leveling agent, so in terms of the driving force towards the final leveling agent, acrylate leveling agent has more advantages. In other words, the final flatness of the film will be better. This is the main function of acrylate leveling agent, and also an important basis for its existence independent of silicone leveling agent. This is especially true for high viscosity coating systems (which require higher leveling power).

By comparison. The main advantage of organosilicon leveling agent is to eliminate all kinds of paint film drying early due to solvent volatilization and other reasons produced by a variety of convection has a negative impact on the disturbance such as Benard vortex, this role is we often mentioned short-wave leveling. For coatings with high solvent content, the key to leveling is often the control of short wave leveling.

For general solvent-based coatings, the film drying process can usually be seen as two stages: (1) the early construction, this time the solvent content is relatively high, the viscosity is small, the flow is easy. At this time the most need to prevent is the solvent volatilizing process of Benard vortex; (2) After most of the solvent volatilizes, the paint film becomes a high solid content system with relatively large viscosity. At this time, non-silicon leveling agent is needed to provide greater leveling power.

In general, if the formulation of silicone and non-silicon leveling agents used together, you can have better surface control throughout the film drying process, so as to obtain the best leveling effect.