1001 CALCIUM CARBONATE 1 MICRON

High-purity calcium carbonate for industrial applications requiring ultrafine particle size.
Natural microcalcite with a particle size of 1 micron (D50 = 1 μm, D98 = 4 μm) produced by CEMIX is designed to provide enhanced performance, cost efficiency, and versatile functionality across various industries. Owing to its stable particle size distribution and high chemical purity, this grade ensures superior mechanical properties, balanced bulk density, and reliable formulation stability in construction materials, polymers, coatings, adhesives, and other applications.

Technical Advantages

High whiteness and purity: whiteness of 96–98% from premium raw materials ensures a clean and consistent color in final products.

Optimal ultrafine particle size: average size D50 = 1 μm (D98 = 4 μm) improves dispersibility and facilitates incorporation into polymer, coating, and adhesive systems.

Low oil absorption: reduces binder and plasticizer demand, improves processing, increases filler loading, and enhances titanium dioxide efficiency.

High thermal stability: microcalcite particles retain their properties even at elevated processing temperatures, making the filler suitable for plastics and rubber products.

Excellent dispersibility: provides uniform distribution in both water-based and solvent-based systems, which is particularly important for paints, coatings, and adhesives.

Partial TiO₂ replacement: high whiteness and opacity allow optimization of titanium dioxide consumption without loss of hiding power in paints, plastics, and paper formulations.

Functional filler with economic effect: improves mechanical strength and dimensional stability of products while increasing hiding power, filler loading, and durability of coatings, adhesives, and polymers.

Local production and reliable packaging: manufactured in Uzbekistan, ensuring stable supply and reduced logistics costs. Supplied in durable moisture-resistant 25 kg bags, with big-bag packaging available upon request.

AREA OF USE

Flexible (plasticized) PVC: enhances surface quality (uniformity and smoothness), reduces production cost, and improves mechanical properties.

PVC coatings: increases abrasion resistance, improves surface gloss, and enhances application properties.

Rigid PVC: improves stiffness, extrusion speed, and thermal conductivity of the composite.

Polyurethane systems: increases hardness, improves dimensional stability, and enhances production efficiency.

PVC sheet plastics, molded products, and cable compounds: improves stiffness, strength, and thermal performance.

Polyolefins: enhances molding quality, increases whiteness and surface gloss of final products.

Modern water-based coatings: acts as a functional filler and rheology modifier, improving hiding power and flow properties.

Rubber products: increases tensile strength, stiffness, and abrasion resistance.

PHYSICAL PROPERTIES
Packed bulk density (ISO 787/11) 1.0  g/cm³
PH value (ISO 787/9) 9.5
Oil absorption (ISO 787/5) 22 g / 100 g
Fineness  
Residue on a 45 µm sieve (ISO 787/7) 0.05%
Top cut (d98%) 4 µm
Mean particle size (d50%) 1 µm
Particles < 2 µm 80%
Optical properties  
Brightness (Ry, C/2º, DIN 53163) 92.5%
Brightness CIE L*, a*, b* (ISO 11664-4) 96.5/0/0.5
Moisture ex works (ISO 787/2) 0.2%
CHEMICAL PROPERTIES
CaCO3 98%
MgO 0.5%
Fe2O3 <0.05%
Al2O3 <0.10%
HCL insoluble content 0.15%