High Whiteness Ground Limestone Powder

Our High whiteness ground limestone powder is produced from high-whiteness high-quality calcite and limestone as raw materials, processed through fine grinding, magnetic iron removal and classification refining. The product has high whiteness, stable color and small batch color difference. Our High whiteness ground limestone powder has whiteness above 90%, with strict control of coloring impurities such as iron. It can effectively improve the whiteness and appearance texture of downstream products, and is the preferred white filler for white building materials, light-colored coatings, plastics and other fields.

To ensure stable high whiteness, we control the content of coloring impurities such as iron and manganese from the ore source, and add multi-stage magnetic iron removal process during production to maximize the removal of colored impurities, ensuring each batch of High whiteness ground limestone powder has stable high whiteness. The product has uniform particle size and good dispersibility, does not turn gray or yellow in various systems, and can effectively improve the appearance quality of final products. With excellent whiteness performance, our High whiteness ground limestone powder is widely used in industries with high requirements for color.

● White building materials: Used for white artificial stone, decorative mortar and putty powder, white and uniform with small color difference.

● Light-colored plastics and rubber: Used for white and light-colored plastic products, without affecting product color, improving appearance quality.

● High-grade white coatings: Improve coating whiteness and hiding power, reduce titanium dioxide dosage and lower cost.

● High-grade papermaking: Improve paper whiteness and opacity, with white and uniform paper surface and good printing effect.

We have established a special quality control system for high-whiteness products, controlling whiteness and coloring impurities throughout the whole process from ore source to finished products. At the mine end, we select high-whiteness low-iron ore sections; multi-stage magnetic iron removal process is added during production to maximize the removal of iron, manganese and other coloring impurities; finished products are tested batch by batch for whiteness and iron content to ensure color difference between batches is within controllable range. Strict quality control ensures stable product whiteness and meets the requirements of downstream industries for color consistency.

We can customize High whiteness ground limestone powder with different whiteness grades and fineness according to customers' color and performance needs. We can provide different whiteness grades such as 90%, 92% and 94%, and also adjust fineness and impurity indicators to adapt to the needs of different industries such as building materials, coatings and plastics. Whether it is mass supply with conventional whiteness or customized production with ultra-high whiteness, we can meet customer needs.

Adopt anti-pollution packaging: 25kg film-coated woven bags lined with PE film to prevent pollution and discoloration during transportation; bulk procurement can choose sealed ton bags. Products are stored in a dry and clean warehouse, away from colored and dust pollutants to avoid cross-contamination affecting whiteness. Rain and dust protection measures are taken during transportation to ensure products arrive white and clean. The shelf life is 12 months under proper storage conditions, and whiteness index can be maintained stably.

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