Kaolin (China Clay)
Functional High Whiteness
Polymer Additives

Kaolin (China Clay)

High-grade Kaolin designed for superior functional filling and reinforcement in polymer applications. Our premium China Clay delivers exceptional whiteness, optimal particle size distribution, and excellent dimensional stability for enhanced polymer performance and cost optimization.

  • Superior Whiteness Index
  • Excellent Dimensional Stability
  • Optimal Particle Size Distribution
  • Enhanced Reinforcement Properties
  • Improved Processing Characteristics
  • Cost-effective Performance
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Technical Specifications

Product Type: Kaolin Clay (China Clay)
Chemical Formula: Al₂Si₂O₅(OH)₄
Particle Size: 0.1-5.0 μm
Brightness: 80-95% ISO
Oil Absorption: 30-50 g/100g
pH (10% slurry): 4.0-7.0
Processing Temperature: Up to 300°C
Recommended Loading: 10-50% by weight
Appearance: White to off-white powder
Moisture Content: ≤ 1.0%
Specific Gravity: 2.6 g/cm³
Hardness (Mohs): 1-2
Aspect Ratio: 5:1 to 20:1
Compatibility: Most polymer systems
Storage Stability: Indefinite (dry conditions)
Packaging: 25kg kraft bags with PE liner

Applications

Reinforcing Filler
Coatings & Paints
Paper & Cardboard
Ceramics & Tiles
Rubber Compounds
Packaging Materials
Automotive Parts
Adhesives & Sealants
Electrical Insulation
Construction Materials
Agricultural Films
Food Packaging

Industry-Specific Grades

DRAVYOM offers specialized kaolin clay grades with different particle sizes and surface treatments, providing excellent reinforcement and cost-effectiveness for various polymer applications.

Standard Grade (KC-100)
Particle size: 1-3 μm Brightness: 80-85% Cost: Economical Application: General purpose
Fine Grade (KC-200)
Particle size: <1 μm Surface area: High Reinforcement: Enhanced Application: High-performance
Calcined Grade (KC-300)
Processing: Heat treated Brightness: 90-95% Opacity: Enhanced Application: Coatings
Surface Treated (KC-400)
Treatment: Silane coupling Compatibility: Enhanced Dispersion: Improved Application: Composites

Quality Standards

DRAVYOM's kaolin clay is manufactured under stringent quality control protocols, meeting international mineral filler standards including ISO, ASTM, and food contact specifications for superior performance.

ISO 9001:2015 Certified Manufacturing
ASTM D5231 Testing Standards
Consistent Particle Properties
Advanced Particle Analysis
Ultra-High Purity Standards
Batch-to-Batch Consistency
Complete Physical Testing
Moisture-Protected Storage

Advanced Chemical Properties & Performance

Kaolin (China Clay) exhibits exceptional reinforcement properties essential for polymer enhancement applications. Their layered aluminosilicate structure and controlled particle morphology ensure reliable mechanical reinforcement, superior dimensional stability, and excellent cost-effective performance in demanding polymer environments.

Crystal Structure
Mineral Type: Layered aluminosilicate
Chemical Formula: Al₂Si₂O₅(OH)₄
Crystal System: Triclinic platelets
Aspect Ratio: 10:1 to 20:1 typical
Thermal Properties
Processing Temperature: Up to 400°C stable
Decomposition: 450-600°C dehydroxylation
Thermal Conductivity: 2.6 W/m·K
Expansion: Low thermal expansion
Physical Properties
Particle Size: 0.1-5 μm typical
Surface Area: 8-25 m²/g
Density: 2.6 g/cm³
Whiteness: 85-95% ISO brightness
Mechanical Properties
Hardness: 1-2 Mohs scale
Reinforcement: Moderate stiffness increase
Plasticity: High when hydrated
Abrasiveness: Very low
Processing Characteristics
Dispersibility: Good with proper mixing
Wetting: Hydrophilic surface
Loading Level: 10-40% typical
Compatibility: Most polymer systems

Performance Characteristics

Detailed performance metrics demonstrate kaolin effectiveness in polymer reinforcement with exceptional cost-performance ratio, superior whiteness retention, and excellent dimensional stability across diverse polymer and coating applications.

Cost Effectiveness

Economics: Superior value proposition

Optimal cost-performance balance
Whiteness

Brightness: 85-95% ISO standard

Excellent color properties
Reinforcement

Stiffness: Moderate improvement

Balanced property enhancement
Dimensional Stability

Shrinkage: Reduced thermal effects

Improved product stability
Processing

Behavior: Easy incorporation

Manufacturing friendly
Opacity

Coverage: Good hiding power

Effective light scattering

Safety Information

Kaolin clay is generally safe but requires dust control measures during handling. Avoid prolonged inhalation of fine particles. Use appropriate personal protective equipment including dust masks and gloves. Ensure adequate ventilation during processing. Generally recognized as safe for most applications.

Dust Protection Recommended
Generally Safe Material
Food Contact Approved

Storage & Handling

Store kaolin clay in cool, dry conditions away from moisture sources. Keep containers tightly sealed to prevent moisture absorption and contamination. Use dust-controlled handling systems. Ensure proper ventilation during processing to minimize airborne particles.

Moisture control essential
Dust management systems
Dry storage conditions
Contamination prevention

Chemical Mechanisms & Reaction Pathways

Kaolin clay functions through physical reinforcement mechanisms, providing structural enhancement via platelet orientation, interfacial bonding, and geometric effects that improve mechanical properties while maintaining processability.

Physical Reinforcement

Platelet alignment and aspect ratio effects enhance modulus

Geometric reinforcement mechanism
Interfacial Bonding

Hydrogen bonding and van der Waals interactions

Enhanced polymer-filler adhesion
Nucleation Effects

Crystal nucleation sites improve crystallinity

Enhanced polymer structure
Barrier Properties

Platelet tortuosity path increases barrier performance

Improved permeation resistance

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global market access with complete documentation packages supporting international standards and functional filler safety requirements.

FDA Compliance

Food contact approved with indirect additive clearance

EU Regulations

EFSA approved for plastic food contact applications

USP Grade

Pharmaceutical grade available for medical applications

Global Standards

International mineral filler approvals

GRAS Status

Generally recognized as safe for food applications

SDS Available

Multi-language Safety Data Sheets (GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's mineral processing team provides comprehensive technical support, formulation assistance, and application services to optimize kaolin performance in your specific functional filler applications.

Formulation Development
  • Loading level optimization
  • Surface treatment selection
  • Processing parameter guidance
  • Custom grade development
Testing Services
  • Particle size analysis
  • Rheological evaluation
  • Mechanical property testing
  • Performance validation
Technical Support
  • Dispersion troubleshooting
  • Processing optimization
  • Quality enhancement guidance
  • Application training
Supply Solutions
  • Consistent quality programs
  • Custom packaging options
  • Just-in-time delivery
  • Global sourcing network

Environmental Impact & Sustainability

Our kaolin production emphasizes environmental responsibility through sustainable mining practices, waste minimization, and comprehensive environmental impact management for functional filler applications.

Sustainable Mining

Responsible extraction with land rehabilitation programs

Water Management

Closed-loop water systems with zero discharge

Energy Efficiency

Optimized processing with renewable energy integration

Natural Resource

Abundant natural clay with minimal processing impact

ISO 14001

Environmental management system certified mining

Carbon Footprint

Low carbon mineral with transportation optimization

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art mineral processing facility employs advanced beneficiation technology and continuous monitoring systems to ensure consistent kaolin quality and performance across all production batches.

Processing Methods

Advanced wet processing with magnetic separation

High purity kaolin with controlled properties
Quality Testing

Comprehensive particle analysis and purity testing

XRD, particle size, and brightness verification
Quality Systems

ISO 9001:2015 quality management with mineral testing

Continuous improvement and specification control
Packaging Control

Moisture-controlled packaging preventing degradation

Quality preservation and contamination prevention

Market Applications & Performance Data

Comprehensive polymer testing data demonstrating kaolin effectiveness across diverse applications with quantified performance metrics and validated reinforcement benefits.

Polymer Manufacturing
Modulus Improvement: 30-50% increase at 20 phr Cost Reduction: 15-25% material cost savings Processing: Improved dimensional stability
Packaging Applications
Barrier Properties: 40% improvement in gas barrier Clarity: Minimal haze increase at low loadings FDA Approval: Safe for food contact applications
Automotive Applications
Heat Deflection: 15-20°C improvement Surface Quality: Enhanced appearance and finish Weight Reduction: Density optimization benefits

DRAVYOM Competitive Advantages

Superior Quality

High-brightness kaolin with exceptional purity and controlled particle size for optimal performance

Reliable Supply

Guaranteed availability with strategic reserve management and consistent quality production

Technical Expertise

Dedicated mineral processing team provides formulation development and application support

Quality Assurance

Comprehensive testing with performance validation and regulatory compliance documentation

Global Standards

International compliance with FDA, EU, and global mineral filler regulations

Partnership Approach

Collaborative relationships with polymer manufacturers and custom grade development services