This product is used in water-based coatings, providing the coating with advantages such as fine texture, uniformity, quick drying, and excellent optical performance. The product features fine particles with a narrow particle size distribution, complete wetting with water, and easy grinding and dispersion. It significantly improves the viscosity and thixotropy of the coating, optimizes processing performance, and enhances the weather resistance and scrub resistance of the coating film. It can create a synergistic effect with titanium dioxide, reducing the usage of expensive titanium dioxide while also lowering the amount of binder in the base material. This leads to a substantial reduction in costs and significant economic benefits.