Different from ordinary kaolin, this product is calcined at above 1200℃, with regular spherical particles, which can effectively reduce the viscosity increase of the coating system and improve the construction leveling performance. Its ultra-high whiteness and narrow particle size distribution can replace part of titanium dioxide, reduce formula costs while maintaining excellent hiding power. Strictly controlled impurity content avoids color change or precipitation problems in coatings, passes EU REACH environmental protection certification, complies with global coating industry environmental protection standards, and solves the industry pain points of poor stability and poor construction performance caused by traditional fillers.
Detailed parameters are as follows: Whiteness ≥93% ISO, average particle size D50 is 2.0μm, SiO2 content 49.0±0.5%, Al2O3 content 38.0±0.3%, ignition loss ≤0.4%, oil absorption 38±2g/100g, pH value 7.0±0.3, moisture content ≤0.15%, Fe2O3 impurity content ≤0.008%, packaging can be 25kg moisture-proof paper bag or 1000kg ton pallet, store in dry and ventilated environment to avoid moisture agglomeration.
It is mainly used in architectural interior wall latex paint, exterior wall elastic paint, industrial heavy-duty anti-corrosion paint, wood paint and other fields. It can be used as a functional filler in combination with titanium dioxide to optimize the gloss, scrub resistance and storage stability of coatings; it is especially suitable for high-end matte coating formulas, which can improve the delicate texture of the coating and reduce the comprehensive cost of raw materials. It has obtained long-term supplier certification from many leading global coating brands.
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