Paint Grade Limestone Powder

Our Paint grade limestone powder is a functional extender pigment filler specially customized for the coating industry, produced from high-whiteness limestone as raw material, processed through fine grinding, classification and magnetic iron removal. Our Paint grade limestone powder optimizes three core indicators of whiteness, fineness and oil absorption value for coating systems, which can effectively improve the hiding power, leveling property and weather resistance of coatings, while reducing formula cost. It is a cost-effective filler for coating production.

Different from ordinary limestone powder, our Paint grade limestone powder strictly controls particle size distribution and large particle sieve residue to avoid graininess and scratches in paint film; meanwhile, oil absorption value is optimized to balance coating fluidity and filling efficiency. The product has stable whiteness and small color difference between batches, which can effectively improve coating whiteness and hiding power, reduce titanium dioxide dosage and lower formula cost. With special performance adapted to coatings, our Paint grade limestone powder is widely used in interior and exterior wall latex paints, industrial coatings, powder coatings and other fields.

● Interior and exterior wall latex paints: Improve hiding power and scrub resistance, improve construction leveling property and reduce formula cost.

● Industrial anti-corrosion coatings: Used as extender pigment to increase paint film thickness and mechanical strength, and enhance anti-corrosion performance.

● Powder coatings: Improve leveling property and impact resistance, adjust powder fluidity and reduce production cost.

● High-grade primer: Enhance paint film filling and anti-corrosion ability, and improve primer compactness.

We have a professional coating technical team to provide formula application services of Paint grade limestone powder for customers. According to customers' coating category, performance requirements and cost target, we can recommend appropriate fineness and addition amount suggestions; we can also cooperate with customers to conduct formula debugging, optimize the ratio of titanium dioxide and filler, and minimize formula cost on the premise of ensuring performance. Help customers improve coating cost performance and enhance product market competitiveness.

We have established special quality standards for paint-grade products, focusing on whiteness, fineness, oil absorption value and sieve residue indicators. Magnetic iron removal process is added during production to remove colored impurities and ensure whiteness; laser particle size analyzer is used to control particle size distribution to ensure large particles meet the standard; finished products are tested batch by batch for whiteness, oil absorption value and fineness to ensure small color difference and stable performance between batches. Each batch of products is accompanied by an inspection report, adapting to the quality control requirements of coating enterprises.

We can customize Paint grade limestone powder with different indicators according to customers' coating formula needs. We can adjust whiteness grade, particle size distribution and oil absorption value, and also provide surface modified products to improve dispersibility and compatibility in coating systems. Whether it is general latex paint or special industrial coating, we can provide adapted product solutions to meet customers' personalized formula needs.

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