Engineered Kaolin Solutions
Ceramics
- High green strength for sanitaryware
- Superior plasticity for porcelain body
- Precisely controlled rheology
Rio Clays engineers ceramics-grade kaolin via advanced beneficiation for optimal vitrification performance.
Paper & Packaging
- Exceptional surface brightness
- Low abrasion for high line speed
- Improved ink-holdout & coating
We utilize precision particle size distribution to achieve the highest standards of opacity and smoothness.
Rubber & Polymers
- Reinforced filler performance
- Enhanced chemical resistance
- Optimal moisture content control
Rio Clays engineers kaolin with surface-treatment technology to maximize compatibility in polymer matrices.
Technical Ceramics
- Ultra-high chemical purity
- Thermal expansion consistency
- High dielectric strength
We co-develop technical grades with customers, utilizing spray-drying to ensure uniform granule morphology.
Technical Performance & Specifications
Rio Clays engineers kaolin minerals to pinpoint precision. Our technical benchmarks ensure optimal brightness, rheology, and consistency for the most demanding technical applications globally.
Brightness (ISO)
89.0% - 92.5%
Particle Size (<2µm)
85% Minimum
Viscosity / Rheology Behavior
<350 cP @ 70% solids
LOI (at 1000°C)
13.4% - 13.9%
Moisture Content
<1.0% (as shipped)
Impurity Control (Fe2O3)
<0.45% Iron-Free Control
Plant-Level Outcomes: Kaolin Performance in Action
Yield Optimization
Major ceramic manufacturers have achieved a 15% reduction in firing-related rejects through the integration of our refined grades. By ensuring structural stability during the vitrification phase, Rio Clays enables higher first-pass yields across high-volume production lines.
Rio Property: Precise Particle Size Distribution
Surface Integrity
In premium packaging applications, our high-brightness kaolin eliminates coating cracks and surface pinholes. This consistency allows manufacturers to maintain superior printability and barrier properties at increased machine speeds without compromising aesthetic standards.
Rio Property: Superior Rheology & Whiteness
Production Throughput
Rubber and polymer compounders have successfully increased extrusion line speeds by 20% by switching to Rio Clays. Our low-grit, chemically consistent mineral filler reduces wear on precision dies and ensures uniform curing profiles across the entire lot.
Rio Property: Low Moisture & Impurity Control
Defect Reduction
Technical ceramic producers requiring zero-defect surfaces rely on our kaolin for its predictable firing behavior. The precise control over viscosity during slip casting results in dimensionally accurate components with near-flawless surface finishes after drying.
Rio Property: Controlled Viscosity & Purity
Why Choose Rio Clays for Kaolin
Lab-Backed Consistency
We ensure every batch meets the highest industry standards through state-of-the-art laboratory testing and rigorous quality control protocols across our 500,000+ MT capacity.
Process Integration
Rio Clays provides deep technical support to seamlessly integrate our minerals into your production lines, optimizing brightness and rheological performance for technical ceramics.
Global Reliability
Leveraging Asia's largest spray dryer and a robust export infrastructure, we guarantee consistent supply and reliability to manufacturing partners across every global market.
Co-Development
We partner with your R&D teams to engineer custom kaolin specifications that solve unique manufacturing challenges and drive production speed and quality innovation.
Partner with Asia's Leader in Mineral Engineering
Connect with our technical team to discuss how our engineered kaolin can optimize your production yield and product quality.
T: +91 79 2658 4100
E: info@rioclays.com