Product Details
What Is Limestone Powder (CaCO₃)?
Limestone powder is a fine, white or off-white powder made from ground natural limestone, primarily composed of calcium carbonate (CaCO₃ ≥98%). Jintai’s industrial-grade limestone powder features controlled particle size, low impurities, and consistent whiteness, ideal for use in plastics, coatings, rubber, and more.
Specifications of Jintai Limestone Powder
Purity (CaCO₃ content): ≥98%
Moisture: ≤0.3%
Whiteness: ≥92
Particle size (D₉₀): 10–40 µm (customizable)
Mesh size: 200–1500 mesh
Oil Absorption: 20–30 g/100 g
Bulk Density: 0.8–1.1 g/cm³
Surface Treatment: Optional (stearic acid coating for polymers)
Industrial Applications Of Limestone Powder
Jintai’s limestone powder is widely used in:
Plastics: Enhances rigidity and surface finish in PVC and PE/PP formulations.
Paints & Coatings: Acts as a filler for opacity, brightness, and anti-settling.
Rubber: Improves tear resistance and dimensional stability.
Paper: Functions as a coating pigment and filler for brightness and smoothness.
Flue Gas Desulfurization (FGD): Removes SO₂ in power plant emissions.
Adhesives & Sealants: Reinforces viscosity and bonding strength.
Why Choose Jintai’s Limestone Powder?
High Purity: CaCO₃ ≥98% for demanding formulations.
Tightly Controlled Size: Uniform particle distribution from 200–1500 mesh.
Customization: Mesh size, surface coating, and packaging tailored to client needs.
Consistent Supply: 10.000+ tons/month capacity, with export packaging (25kg, 1 ton bag, IBC).
Global Compliance: RoHS, REACH, SGS available on request.
Frequently Asked Questions
What is the difference between limestone powder and GCC (Ground Calcium Carbonate)?
They are often the same. Ground limestone powder is a form of GCC, produced by mechanical grinding rather than precipitation.
Is limestone powder suitable for food applications?
For food-grade use, please refer to our Food Grade Calcium Carbonate product, processed in GMP-compliant environments.
Can I request coated limestone powder for plastics?
Yes, we offer surface-treated variants using stearic acid or other agents for enhanced dispersion in polymers.
What’s the packaging available for limestone powder?
Standard export packaging includes 25 kg bags, 500/1000 kg jumbo bags, or customized on request.
