China Clay (Kaolin) – High Purity Processed Clay from SparkGuys

SparkGuysis a trusted supplier of high-quality China Clay (Kaolin), sourced directly from premium mines and processed to meet the exact requirements of various industries. Our kaolin is known for its high purity, excellent whiteness, controlled particle size, low impurities, and superior performance in industrial applications.

With years of expertise in mineral processing, SparkGuys delivers industry-specific China Clay solutions — from raw mined clay to fully processed, washed, dried, and calcined grades.

Why SparkGuys China Clay?

• Direct Sourcing from Mines Guaranteed consistent quality and mineral purity.
• Advanced Processing – Drying, washing, silica removal, grinding, and calcination for enhanced brightness and performance.
• Industry-Specific Customisation – Tailor-made clay for paper, paint, rubber, ceramics, cosmetics, and more.
• High Whiteness & Low Impurities – Suitable for applications that demand brightness and opacity.
• Reliable Supply Chain – Bulk and consistent supply for factories and industrial users across India.

How sparkguys handle chinaclay

• Procuring from Mines

  We select clay deposits based on whiteness, alumina content, plasticity, and industry requirements.

• Drying

  The raw clay is sun-dried or mechanically dried to reduce moisture content before further processing.

• Washing & Silica Removal

  The clay undergoes wet beneficiation to remove silica, sand, iron, and other impurities. This results in high-brightness washed kaolin ideal for premium applications.

• Refining & Particle Size Classification

  Material is refined and classified to achieve desired particle sizes for different industries.

• Calcination (Optional Grade)

  For industries that require higher performance, the clay is calcined at high temperatures to increase whiteness, opacity, and chemical stability.

• Packaging & Industrial Supply

  We supply bulk bags, loose loading, or custom packaging to factories and industrial buyers.

Grades of Kaolin

Grade Type	Processing Level	Application
Raw China Clay	Dried, unwashed	Cement, low-grade fillers
Washed Kaolin	Silica removed, refined	Paints, rubber, paper
Hydrous Kaolin	Water-retained type	Coatings, adhesives
Calcined Kaolin	High-temperature calcination	Plastics, paper gloss, high whiteness applications

Technical Specifications of Kaolin

Parameter	Typical Value	Description / Importance
Appearance	Off-white to Pure White Powder	Indicates purity and whiteness level
Brightness (ISO)	82% – 92%	Higher brightness is preferred for paper, paint & cosmetics
Whiteness	85% – 95%	Important for coatings, ceramics, and high-end applications
Moisture Content	< 1%	Ensures stability and easy processing
pH (25°C)	4.5 – 6.5	Suitable for coatings, adhesives, and rubber
Particle Size (D50)	2 – 10 microns (customizable)	Determines fineness and application suitability
Oil Absorption	35 – 45 g / 100 g	Affects viscosity and paint formulation
Bulk Density	0.4 – 0.6 g/cc	Useful for packaging and handling
Specific Gravity	2.6 – 2.7	Standard for kaolinitic minerals
Loss on Ignition (LOI)	12% – 14%	Indicates organic removal and clay purity
Al2O3 (Alumina)	34% – 38%	Higher alumina = higher purity kaolin
SiO2 (Silica)	44% – 48%	Silica content reduces after washing process
Fe2O3 (Iron Oxide)	< 0.6%	Low iron ensures high whiteness & suitability for ceramics
TiO2	< 2%	Affects brightness and opacity
Calcium Oxide (CaO)	< 0.2%	Low CaO improves consistency in high-temperature applications
Magnesium Oxide (MgO)	< 0.2%	Ensures purity for pharma & cosmetic grades
Mesh Size	200, 240, 300, 325 Mesh	Available in different fineness as per industry use
Calcined Grade	Available	Higher whiteness, opacity & chemical stability

SparkGuys is a leading manufacturer and supplier of high-purity China Clay (Kaolin). We source clay directly from mines and process it through drying, washing, silica removal, refining, and calcination to achieve superior industrial quality. Our China Clay is widely used in paper, paint, rubber, ceramics, cosmetics, plastic, fertilizer coating, and adhesive industries, offering exceptional whiteness, brightness, and performance. Choose SparkGuys for reliable quality, consistent supply, and industry-specific clay solutions.