Ultra-fine Heavy Calcium Carbonate Product Performance Description Characteristics: Relatively stable chemical properties, no change in air, almost insoluble in water. Dense crystal structure, low impurity content, smooth surface, uniform particle size, good processing performance, low DOP oil absorption value, and other properties. Main Functions ◆ Paper Industry: Enhances surface gloss, improves whiteness, and increases paper smoothness. ◆ Plastic Composite Industry: Significantly improves the interfacial bonding strength and mechanical properties of plastic composites; used in various plastic pipes, profiles, plastic products, degradable plastics, and wire and cable materials to enhance toughness, reinforce, improve gloss, and upgrade quality. ◆ Rubber Industry: Improves tensile strength, tear resistance, heat resistance, aging resistance, and tear resistance of products. ◆ Coating Industry: Increases coating film thickness, enhances wear resistance and weather resistance of coatings, and improves powder coating adhesion rate and spraying area. Additionally, it contains no heavy metals, making it the **best filler** for heavy-metal-free powder coatings.