The improvement of silica on the performance of coatings is mainly reflected in the following aspects:

1. Enhance hiding power and adhesion
As a pigment filler, silica can significantly improve the hiding power and adhesion of coatings. Its tiny particle size and high specific surface area enable the coating to adhere more closely to the surface of the substrate, forming a uniform and firm coating, thereby improving the overall performance of the coating.

2. Improve weather resistance
Silica can enhance the weather resistance of coatings, including UV resistance, aging resistance, and salt spray resistance. The improvement of these properties enables the coating to maintain stable performance in harsh environments and extend its service life. For example, in outdoor coatings, silica can reduce the penetration of ultraviolet rays and reduce the oxidation rate of the coating, thereby extending the service life of the coating.

3. Thixotropic properties
Silica has thixotropic properties, which makes the coating easy to flow and apply under shear force, while maintaining a certain shape and stability when stationary. This property helps to eliminate droplet sedimentation, improve the suspension and stability of the coating, and facilitate construction. At the same time, the thixotropic property can also make the coating easier to operate and control during the construction process, improving the construction efficiency.

4. Improve the leveling property
Silica can improve the leveling property of the coating, making the coating smoother and flatter. This helps to reduce brush marks and orange peel phenomenon, and improve the decorativeness and aesthetics of the coating. At the same time, good leveling can also make the coating more uniform, improve the hiding power and adhesion of the coating.

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