China Clay, also known as kaolin, is a soft white clay essential in ceramics, paper, rubber, and paint industries. In ceramics, it enhances whiteness, acts as a filler, and improves thermal resistance. Its uniform particle size and chemical stability make it ideal for smooth surfaces and precise finishes. We provide high-quality, brightness-controlled China Clay to support manufacturing consistency and surface refinement.
- Bright White Appearance
- Excellent Thermal Resistance
- High Chemical Stability
- Smooth Surface Finish
- Versatile Industrial Use
Products Inquiry| Chemical Properties | ||||||
|---|---|---|---|---|---|---|
| RK1 | RK2 | RK3 | RK4 | RK5 | RK6 | |
| Silica (SiO₂) | 46.34% | 52.50% | 87.77% | 46.48% | 73.61% | 11.08% |
| Alumina (Al₂O₃) | 35.61% | 29.8% | 7.32% | 36.31% | 14.98% | 0.75% |
| Iron (Fe₂O₃) | 0.99% | 1.40% | 0.08% | 0.66% | 0.95% | 0.23% |
| Titanium (TiO₂) | 2.00% | 0.32% | 1.34% | 0.08% | 0.01% | |
| Calcium (CaO) | 0.33% | 0.4% | 0.44% | 0.27% | 0.14% | 25.52% |
| Magnesium (MgO) | 0.88% | 0.35% | 0.56% | 0.44% | 0.81% | 21.96% |
| Potassium (K₂O) | 0.76% | 0.42% | 1.61% | 0.11% | 4.74% | 0.13% |
| Sodium (Na₂O) | 0.30% | 0.65% | 0.13% | 0.25% | 0.27% | 0.33% |
| Loss on Ignition (L.O.I) | 12.54% | 12.83% | 1.61% | 13.66% | 2.83% | 39.81% |
| Physical Properties | ||||||
| L Value | 74.45% | 85.66% | 91.41% | 90.23% | 77.16% | |
| A Value | 0.92% | 2.39% | -0.03% | 1.32% | 2.64% | |
| B Value | 14.26% | 14.56% | 8.59% | 6.03% | 16.31% | |
| Whiteness | 76.10 | |||||
| Temperature (°C) | 1222/1226 | 1222/1226 | 1222/1226 | 1217/1227 | 52.825 | |
| Cycle Min | 45 | 45 | 50 | 50 | ||
| Residue | 0.12 | 7.47 | ||||
| TDS | 407.00 | 120.00 | ||||
| Shrinkage | 5.15% | 6.52% | 10.44% | 7.08% | 9.52% | |
| Fixed M.O.R (kg/cm²) | 511.20 | 130.80 | 234.40 | 84.30 | 336.70 | |
| Dry M.O.R (kg/cm²) | 10.70 | 6.20 | 22.30 | 22.90 | ||
| Water Plasticity | 35.60 | 33.20 | 19.90 | 36.80 | 28.60 | |
| Water Absorption | 1.87 | 12.41 | 6.72 | 2.99 | ||