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W-H1000 is a high-purity precipitated barium sulfate manufactured by Yunfu Hongzhi New Materials Co., Ltd. using an exclusive sulfuric acid process with stringent parameter control and multi-stage classification filtration. It features ultra-fine particle size (D50 = 1.0 µm), narrow particle distribution, exceptional whiteness (≥96%), and zero sulfur odor or black specks—ensuring batch-to-batch consistency and superior compatibility in demanding formulations. This product delivers outstanding dispersion stability, low viscosity impact, enhanced weather resistance, and improved gloss retention in coating and ink systems. It is widely adopted across automotive OEM and refinish coatings, industrial maintenance paints, pigment dispersions, gravure and flexo inks, and engineering-grade modified plastics where optical clarity, rheology control, and chemical inertness are critical.
1. Ultra-fine median particle size (D50 = 1.0 µm) ensures smooth film formation and high-gloss finishes.
2. High purity (≥98.0 wt% BaSO₄) and neutral pH (8.0) guarantee chemical stability in acidic/alkaline resin systems.
3. Low oil absorption (12 g/100g) reduces formulation viscosity and improves pigment loading efficiency.
4. Excellent dispersibility minimizes flocculation and sedimentation in liquid coatings and color pastes.
Store in a cool, dry, well-ventilated area away from direct sunlight and moisture. Shelf life is 24 months from production date when stored unopened under recommended conditions. Transport as non-hazardous general cargo; avoid exposure to rain or condensation during transit. For optimal dispersion, pre-mix with resin or solvent using high-shear mixing before adding other pigments or additives. Although non-toxic and non-hazardous per GHS, operators should wear dust masks and gloves to prevent inhalation of fine particles and skin irritation.; Storage condition: 25 kg/bag; Shelf life: 25 kg/bag; Pack size: 25 kg/bag
