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Technical Data Sheet (TDS)
Calcined Clay
Processed by heat-treating hydrous clay in computer-controlled rotary kilns, our Calcined Clay (calcined kaolin) is engineered for maximum whiteness and opacity. Calcination alters the mineral structure, increasing hardness, improving electrical insulation, and creating a porous network that enhances optical scattering in paints and cables.
Physical Properties & TestingStandard ISO/ASTM
Whiteness (ISO)92.5% - 94.0%
Refractive Index1.62
Oil Absorption55 - 65 g/100g
LOI (Thermal Loss)0.5% Max
pH (10% aqueous slurry)5.5 - 6.5
Calcined Clay Chemical Analysis (%)
SiO2 (Silicon Dioxide)52.40%
Al2O3 (Aluminum Oxide)44.50%
Fe2O3 (Iron Oxide)0.45%
TiO2 (Titanium Dioxide)0.50%
LOI (Loss on Ignition)0.50%
XRF spectrometer analysiscertified lab batch
Quality Assurance Controls
- Rigorous kiln temperature tracking (up to 1050°C)
- Continuous monitoring of TiO2 extender properties
- Absolute control on low LOI parameters
Target Applications
Key Uses
- High-voltage electrical cable insulation
- Titanium Dioxide (TiO2) extension in architectural paint
- Thermal papers and specialty films
- Polishing compounds and engineering plastics
Logistics & Packaging
Packaging Solutions
- 25 Kg paper bags
- 0.8 - 1.0 MT palletized jumbo bags with shrink wrap