Calcite Lime Stone
High-purity natural calcium carbonate with outstanding whiteness, high tinting strength, and low oil absorption for premium paints and polymers.
Product Overview: Natural Calcite Limestone
Calcite (Limestone) is a naturally occurring crystal polymorph of calcium carbonate (CaCO3) characterized by high purity, high optical brightness, low oil absorption, and controlled particle morphology.
Sakthima supplies premium micronized Calcite powder manufactured from select white crystalline marble rocks. It provides unmatched cost-efficiency, brightness, and dispersion across paints, plastics, polymers, adhesives, and construction chemicals.
Key Benefits
High Brightness & Opacity
Significantly improves the brightness, opacity, and tinting strength of architectural paints.
Reduces Titanium Dioxide Cost
Acts as an efficient TiO2 spacer, allowing coating formulators to reduce pigment costs.
Weather Resistance
Provides exterior durability, UV stability, and washability in wall putties and textured coatings.
High Loading in Polymers
Allows high filler loading in masterbatches, PVC pipes, and PP compounds without sacrificing strength.
Easy Dispersion
Disperses rapidly in aqueous and solvent mediums with minimal grinding energy.
Applications
Decorative & Industrial Paints
Rigid PVC & Pipes
Wall Putty & Plasters
Masterbatches & Compounds
Technical Specifications
| Parameter | Paper Coating | Paint Extender | Plastics Premium | Glass Grade | Cement Feed |
|---|---|---|---|---|---|
| CaCO3 Content | 98.8% | 97.5% | 96.0% | 94.5% | 88.0% |
| Silica (SiO2) | 0.45% | 1.10% | 1.80% | 2.50% | 5.50% |
| Magnesia (MgO) | 0.20% | 0.40% | 0.80% | 1.20% | 2.50% |
| Iron Oxide (Fe2O3) | 0.02% | 0.04% | 0.08% | 0.15% | 0.35% |
| Whiteness | 96.0% | 93.0% | 90.0% | 86.0% | 78.0% |
| Brightness | 94.0% | 91.0% | 88.0% | 84.0% | 75.0% |
| Specific Gravity | 2.71 | 2.70 | 2.70 | 2.68 | 2.65 |
| Mesh Size | 400 Mesh | 325 Mesh | 325 Mesh | 200 Mesh | 100 Mesh |
Why Choose Us?
Select White Mine Deposits
Sourced exclusively from high-grade crystalline limestone deposits ensuring consistent quality.
Sub-micron Grading
Available in 300 Mesh to 2 Microns (D50) ground using advanced German ball mills.
Low Heavy Metal Content
Fully tested and certified for low silica, lead, and heavy metal concentrations.
Reliable Delivery
Supplied in palletized 25 kg bags and jumbo bags with nationwide transport support.