Refined China Clay (Kaolin)
Ultra-white, ultra-pure clay for premium applications.
China Clay, commonly known as Kaolin, is a high-purity, ultra-fine mineral refined through advanced levigation processes to remove impurities and enhance its natural properties. Recognized for its soft, smooth texture and brilliant white appearance, China Clay is composed primarily of hydrated aluminum silicate, giving it excellent plasticity, stability, and workability. Its neutral to slightly acidic pH, high brightness, and low abrasiveness make it one of the most versatile and dependable clays used across global industries.
Thanks to its exceptional suspension ability, chemical inertness, and thermal resilience, Levigated China Clay performs consistently in a wide range of applications. It plays an essential role in ceramics, porcelain, paper manufacturing, paints, coatings, rubber, plastics, cosmetics, pharmaceuticals, and refractory products. Its superior whiteness, opacity, and fine particle size make it ideal for producing high-quality end products that demand uniformity, purity, and aesthetic appeal.
Minimum Order Quantity : 20 Metric Tons
Supply Capacity : 500 Metric Tons / Day
Packing : Loose / Bag Packing
Applications & Advantages
Applications
Ceramics & Porcelain: Enhances plasticity, strength, whiteness, and firing performance
Paper Industry: Used as a coating and filler for brightness, opacity, and smooth printing
Paints & Coatings: Improves texture, durability, opacity, and washability
Rubber & Plastics: Acts as a functional filler for reinforcement and heat resistance
Cosmetics & Personal Care: Used in powders, creams, and skincare for its softness and absorbency
Pharmaceuticals: Employed as an excipient and suspension agent
Refractories: Suitable for firebricks and thermal-resistant components
Advantages
High brightness and whiteness for premium-quality product manufacturing
Low abrasiveness, ideal for paper, coatings, and cosmetic applications
Excellent plasticity and shaping ability, especially in ceramics
Stable chemical properties, non-toxic and industry-safe
Good thermal stability, suitable for firing and high-temperature processes
Superior opacity and dispersion, enhancing visual and functional performance
Physical Properties Comparison
| Property | Levigated China Clay | White Clay |
|---|---|---|
| Shrinkage % | 11.7 | 1.65 |
| Loss on Ignition % | 9.39 | 6.58 |
| Dry M.O.R (kg/cm²) | 13.2 | 14.1 |
| Fired M.O.R (kg/cm²) | 345.8 | 103.2 |
| Water Absorption % | 2.75 | 20.65 |
| Water of Plasticity % | 38.6 | 30 |
| T.D.S | 160 | 100 |
| Residue 300# % | 3.41 | 1.35 |
| L* | 88.07 | 95.28 |
| a* | 1.43 | 0.69 |
| b* | 6.48 | 3.83 |
| Whiteness % | 71.52 | 87.36 |
| Temperature (°C) | 1205/1220 | 1192/1210 |
| Cycle (min) | 60 | 58 |
Chemical Properties
| Compound | Levigated China Clay (%) | White Clay (%) |
|---|---|---|
| SiO₂ | 52.91 | 64.50 |
| Al₂O₃ | 30.98 | 22.34 |
| Fe₂O₃ | 0.47 | 0.29 |
| TiO₂ | 0.15 | 0.54 |
| CaO | 1.41 | 0.29 |
| MgO | 0.32 | 0.31 |
| K₂O | 3.89 | 2.30 |
| Na₂O | 0.13 | 0.26 |
| Loss on Ignition % | 9.41 | 6.61 |
MIX 82 Test Comparison
| Property | Levigated China Clay | White Clay |
|---|---|---|
| Shrinkage % | 12.18 | 12.64 |
| L* | 84.03 | 81.92 |
| a* | 1.43 | 1.79 |
| b* | 6.73 | 9.45 |
| Whiteness % | 63.85 | 60.25 |