Washed kaolin is produced through a precise process: raw materials are mixed with water to form a slurry, followed by sedimentation separation and drying. As a mineral retaining pure kaolin properties, it features white appearance, cost-effectiveness, excellent fluidity, stable chemical performance, and high surface cation exchange capacity. These advantages make it a widely used filler in coatings and paints, while also finding applications in firebricks, silica-alumina wool, cosmetics, and pharmaceuticals.