The fillers in traditional powder coatings often contain heavy metal elements, which conflicts with the limits of international standards for heavy metal content. Especially for goods exported to Europe and the United States, the requirements for heavy metal content are more stringent. Therefore, it is particularly important to find a low-cost white filler that does not contain heavy metals to replace traditional fillers. Calcium carbonateAs an ideal alternative, it is widely used in powder coatings.
Calcium carbonateIt can not only effectively replace the conventional barium sulfate filler, but also ensure the safety performance of the product and meet the requirements of environmental protection. Therefore,Calcium carbonateIt has been widely used in the coating of toys, strollers, sporting goods, kitchen utensils, home appliances and other products.
Calcium carbonateIt is widely used in powder coatings, which is embodied in the following aspects:
1.As a filler for high-gloss coating productsCalcium carbonateIt can improve the brightness and gloss of the coating;
2.In the preparation of semi-gloss coating products,Calcium carbonateIt can be added directly to the coating without the need for additional matting agents, thus reducing production costs
3.As a white inorganic pigment,Calcium carbonateIt can be used together with titanium dioxide to effectively reduce production costs
4.Compared to other fillers,Calcium carbonateIt is more suitable for the production of environmentally friendly products with strict requirements for heavy metal content, such as children's toys, strollers, etc.;
Calcium carbonateIt can improve the powder loading rate and spraying area of the coating, especially in the application effect of mixed powder.