Kaolin 1250mesh K-60 Fine Powder for Ceramic Industry

Product Overview
K-60 represents a premium grade of calcined kaolin engineered through precise thermal treatment and particle size optimization. This lamellar-structured anhydrous aluminum silicate (Al₂SiO₅) powder undergoes proprietary processing to achieve exceptional performance characteristics, making it an indispensable functional additive across multiple industries.

Manufacturing Process

• Precision grinding using jet mill technology to achieve ultrafine particle distribution

• Controlled calcination at 1000-1100°C to optimize crystal structure

• Advanced classification systems ensuring consistent particle morphology

• Surface modification options available for specialized applications

Key Physical Properties

• Whiteness Index: 92-96% (ISO 2470 standard)

• Particle Size: D50 = 1.2-1.8μm (laser diffraction)

• 325 Mesh Residue: ≤0.02% (wet screening)

• Oil Absorption: 35-45g/100g (ASTM D281)

• Specific Gravity: 2.58-2.63 g/cm³

• Refractive Index: 1.62

Chemical Composition

• SiO₂: 52-54%

• Al₂O₃: 44-46%

• Fe₂O₃: ≤0.5%

• TiO₂: ≤0.3%

• LOI (1000°C): ≤0.8%

Performance Advantages in Coatings

• TiO₂ Extension: Achieves 15-25% titanium dioxide replacement without compromising opacity

• Film Reinforcement:

  • 40-50% improvement in scrub resistance (ASTM D2486)

  • 30% enhancement in crack resistance

  • Reduced mudcracking in high-build formulations

• Optical Performance:

  • Controlled light scattering efficiency

  • Improved dry hide characteristics

  • Enhanced brightness and color retention

Cost Optimization Benefits

• Raw material cost reduction of 8-12% in typical formulations

• Improved dispersion reduces milling energy by 15-20%

• Higher loading capacity versus conventional extenders

• Reduced binder demand due to low oil absorption

Polymer Applications
Rubber Industry:

• Excellent reinforcement for mechanical goods

• Improves dimensional stability in vulcanizates

• Reduces compound viscosity for better processing

• Enhances electrical insulation properties

Plastics Applications:

• Improves stiffness and heat deflection temperature

• Reduces warpage in semi-crystalline polymers

• Enhances surface finish in extruded profiles

• Maintains impact strength at high loadings

Technical Comparison with Standard Kaolins
| Property | K-60 | Conventional Kaolin |
|----------|------|---------------------|
| Whiteness | 94% | 85-88% |
| 325 Mesh Residue | 0.02% | 0.5-1.0% |
| Oil Absorption | 40g/100g | 60-80g/100g |
| TiO₂ Replacement | 20% | 8-12% |
| Scrub Resistance | +45% | +15-20% |

Quality Assurance

• ISO 9001:2015 certified production

• Batch-to-batch consistency guaranteed

• Full traceability from mine to final product

• Comprehensive technical data sheets available

Recommended Formulation Guidelines

• Coatings: 5-15% by weight in waterborne systems

• Plastics: 10-25% in polyolefin compounds

• Rubber: 15-40% in mechanical goods

• Inks: 3-8% in publication gravure inks

Handling & Storage

• 25kg multi-wall paper bags with PE liner

• Bulk silo loading available

• 12-month shelf life in dry conditions

• Non-hazardous material classification

Sustainability Profile

• 30% lower carbon footprint vs. alternative extenders

• Naturally occurring mineral resource

• REACH compliant

• Food contact approvals available

This advanced calcined kaolin product continues to gain recognition as a high-performance, cost-effective solution for formulators seeking to optimize their material systems while maintaining superior product performance. Technical support and application development services are available to assist with specific formulation challenges.