Our factory is located in Haicheng City, Liaoning Province, specializing in the production of Liaoning Dolomite Powder in various mesh sizes: 200, 325, 400, 600, 800, 1250, 1500, and 2000. The product features good purity and even particle fineness.

Heavy calcium carbonate powder, commonly referred to as heavy calcium, is a white powder produced by processing calcite, which is primarily composed of calcium carbonate, or raw materials such as marble and dolomite, through large-scale ultra-fine grinding equipment. Depending on the different uses and roles in the product, today I'll discuss the applications and general functions of heavy calcium carbonate powder.

1. For the rubber industry, the heavy calcium powder used in rubber, a 400 mesh grade, boasts a whiteness of 93% and a calcium carbonate content of 96%. When calcium carbonate is filled into rubber, it increases the volume of the product, allowing for a potential reduction in the amount of natural rubber used, thereby lowering production costs. Incorporating calcium carbonate into rubber enhances tensile strength, tear resistance, and wear resistance compared to pure rubber vulcanizates.

2. Plastic industry uses heavy calcium powder plastic masterbatch and color masterbatch with 400 mesh heavy calcium carbonate powder (heavy calcium powder), requiring the whiteness to remain unchanged after high-temperature heating. The ore structure is large crystal calcite, with a calcium carbonate content of 98% and a whiteness of 95%. Calcium carbonate can act as a skeletal role in plastic products, contributing to the dimensional stability of plastic products. It also enhances the hardness of the products and improves their surface luster and flatness. Moreover, due to the high whiteness of calcium carbonate, it can reduce the amount of certain white pigments used.

3. In the paint industry, heavy calcium powder is used in paint formulations and latex paints, with a 800 or 1000 mesh heavy calcium carbonate (heavy calcium powder), with a whiteness of 95% and calcium carbonate content of 96%. The usage of calcium carbonate in the paint industry is also significant, such as in thick paints where the dosage exceeds 30%, which can enhance the product's effectiveness.

4. The heavy calcium powder used in water-based paint industry is a high-quality calcium carbonate (heavy calcium powder) with a mesh size of 800 or 1000, featuring a whiteness of 95% and a calcium carbonate content of 96%. The use of calcium carbonate in the water-based paint industry allows for slow sedimentation, easy dispersion, and a good luster, with an approximate usage of 20-60% in water-based paints.

5. The papermaking industry utilizes heavy calcium powder, a high-quality calcium carbonate (heavy calcium powder) with a 325 mesh size, requiring a brightness of 95 and a calcium carbonate content of 98%. The significant role of calcium carbonate in the papermaking industry is to appropriately enhance the strength and brightness of paper, while also keeping product costs low.

6. In the construction industry (dry powder mortar, concrete), heavy calcium powder is used in dry powder mortar with a 325 mesh size, requiring a whiteness of 93 and a calcium carbonate content of 98. Calcium carbonate plays a significant role in the concrete of the construction industry. It not only reduces production costs but also enhances the toughness and strength of the product.

7. Fireproof Ceiling Heavy Calcium Carbonate Powder - The fireproof ceiling utilizes 600-mesh heavy calcium carbonate powder with a required whiteness of 95% and calcium carbonate content of 98.5%. Calcium carbonate is essential in the production of fireproof ceilings, enhancing the product's whiteness and brightness, as well as its fire-resistant properties.

8. In the artificial marble industry, the use of heavy calcium powder for artificial marble involves a 325 mesh heavy calcium carbonate (heavy calcium powder). The required whiteness is 95, with a calcium carbonate content of 98.5. The product must be free of obvious impurities, and the whiteness and fineness must be evenly controlled, without any particles. The use of calcium carbonate in the production of artificial marble is very common at present.

9. In the tile industry, heavy calcium powder is used for tiles, requiring a 400-mesh heavy calcium carbonate (heavy calcium powder) with a whiteness of 95% and a calcium carbonate content of 98.5%. It must be pure and free of impurities. Calcium carbonate can be utilized in the tile industry to enhance product whiteness and tensile strength, improve certain toughness, and appropriately reduce production costs.

10. The feed industry utilizes heavy calcium powder, specifically high-purity calcium carbonate (heavy calcium powder) with a 325 mesh size. The required whiteness is 95%, with a calcium carbonate content of 99%. The product must be free of visible impurities. The addition of calcium carbonate can appropriately increase the calcium content in feed, enhance certain performance aspects of feed products, and can also help to moderately reduce production costs.