In coatings, calcium carbonate acts as a white pigment and acts as a skeleton. Calcium carbonate can be used as a body pigment in the coatings industry. Since the color of calcium carbonate is white, the solvent is cheaper in the paint than the latex, and the particles are fine and can be uniformly dispersed in the paint, so it is a body pigment which is used in a large amount. Due to the improvement of environmental awareness, a large amount of water-based paint has been applied to the construction, and since calcium carbonate is white, hydrophilic, and inexpensive, it has been widely used. The filling of calcium carbonate enhances the deposit and permeability of the primer to the surface of the substrate. In the paint, the putty is used to fill the base surface and is the middle layer of the overall coating. No matter what kind of putty, it is necessary to add a large amount of filler. The main body of the filler in the putty is heavy calcium carbonate, and a small amount of zinc white is added to increase the viscosity. The lacquer layer is loose and the precipitated calcium carbonate is suitably added for dry grinding. In thick lacquers, calcium carbonate thickens and thickens the coating to provide a filling and filling effect. Therefore, heavy calcium carbonate and light calcium carbonate are usually added to the thick paint, and the heavy calcium carbonate can be added up to 24.6% to 78.5%. In topcoats, ie, topcoats, semi-gloss and matt paints use a method of adding body pigments to reduce gloss. Calcium carbonate is the ideal matting filler. Calcium carbonate can be used as one of the additives in colorful coatings to achieve the purpose of reducing the cost of materials and improving the decorative effect. In the colorful paint, light calcium carbonate, that is, precipitated calcium carbonate, is used, and the oil absorption is about 80%, the particle size is about 15 micrometers, the specific gravity is about 2.7, and the refractive index is about 1.60. It can also be ground with heavy calcium carbonate (calcite powder), that is, natural marble. In the metal anti-rust coating, calcium carbonate is a body pigment, and there is a little anti-rust effect. The appropriate amount of calcium carbonate in the metal anti-rust coating is 30%. Lighting Pole,Lamp Pole,Solar Street Light Pole,Street Light Pole China Searun Solar Solution Co., Ltd. , https://www.searunsolar.com
Calcium carbonate is an inorganic compound and is a major component of limestone (referred to as limestone) and calcite. White crystal or powder, odorless, unreacted in the exposed air, insoluble in alcohol. Calcium carbonate can be classified into heavy calcium carbonate, light calcium carbonate, colloidal calcium carbonate, and crystalline calcium carbonate depending on the method of calcium carbonate production.