Ultrafine Micronized Limestone Powder

Our Ultrafine micronized limestone powder is prepared by ultra-fine grinding and precision classification process, belonging to micron-level ultra-fine limestone powder, with narrow particle size distribution, fine and uniform particles, and excellent dispersibility and reinforcing effect. Our Ultrafine micronized limestone powder has a median particle size of ten microns and extremely low sieve residue. It can be uniformly dispersed in resin, coating and rubber systems, improving the compactness, surface smoothness and mechanical properties of composite materials.

Different from ordinary fine powder, our Ultrafine micronized limestone powder strictly controls D50 and D97 indicators through multi-stage grinding and air classification to ensure uniform particle size and no risk of large particle scratches. The product has moderate oil absorption value, which can not only ensure system fluidity, but also provide good filling and reinforcing effect. With excellent ultra-fine quality, our Ultrafine micronized limestone powder is an ideal functional filler for the medium and high-end composite material field.

● High-grade coatings and paints: Improve paint film fineness, scrub resistance and hiding power, with smooth surface without graininess.

● High-end plastic masterbatches: Uniform dispersion, no white spots, improve product surface gloss and dimensional stability.

● High-grade paper coating: Improve paper smoothness and printability, with fine and uniform paper surface.

● Precision rubber products: Reinforcing filler, improve product wear resistance and surface finish.

We can customize Ultrafine micronized limestone powder with different indicators according to customers' application systems and performance requirements. We can adjust median particle size, particle size distribution, whiteness and oil absorption value, and also provide surface modification treatment to improve dispersibility and compatibility in organic systems. Whether it is coating, plastic or papermaking system, we can targetedly optimize product indicators to adapt to customers' formula and process needs.

We have established a special quality control system for ultra-fine powder, focusing on particle size distribution, large particle sieve residue and whiteness indicators. Laser particle size analyzer is used for real-time online detection during production to dynamically adjust grinding and classification parameters; finished products are tested batch by batch for D50, D97 and sieve residue to ensure fineness indicators up to standard. Meanwhile, coloring impurities such as iron are strictly controlled to ensure stable product whiteness. Each batch of products is accompanied by a particle size inspection report to ensure stable ultra-fine quality.

Adopt special packaging for ultra-fine powder: 25kg film-coated paper-plastic composite bags lined with double-layer PE film, sealed for moisture and powder leakage prevention; bulk procurement can choose sealed ton bags. Products are stored in a cool and dry warehouse to avoid extrusion and caking; handle with care during transportation to prevent packaging damage and powder leakage. The shelf life is 12 months under proper storage conditions, and product fineness and dispersion performance can be maintained stably.

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