Kaolin Clay: For Superior Brightness, Purity & Performance
Kaolin, also known as China Clay, is a natural mineral mainly made of hydrated aluminum silicate. It is known for its fine particle size, soft texture, and natural white color. Kaolin is a versatile industrial mineral used in many industries. When mixed with water, it becomes a smooth and moldable paste, which makes it especially useful in ceramics as well as a filler and coating material in various industrial applications.
Key Features
- High whiteness and brightness
- Fine particle size
- Excellent plasticity
- Good chemical stability
- Low shrinkage during drying
- High insulation properties
Product Specifications
- Aluminum Oxide (Al₂O₃) Content: 35% - 39%
- Silicon Dioxide (SiO₂) Content: 44% - 48%
- Brightness (ISO): 80 - 92
- Particle Size Distribution: % finer than 2 microns (a key quality metric)
- Moisture Content: Typically < 1.5% for dry products
- pH: 4.0 - 7.5
Available Grades
- Lump / Crude: Raw, unprocessed clay from the mine.
- Air-floated: Dry processed, pulverized to a fine powder.
- Water-washed: Processed to remove impurities for higher brightness and controlled particle size.
- Slurry: Shipped as a high-solids suspension in water for large-scale users (e.g., paper mills).
- Custom grades available on request