The choice of pigments for powder coatings

The use of pigments in powder coatings mainly plays a role in coloring and decorative effects. Commonly used are inorganic pigments and organic pigments. Inorganic pigments have the characteristics of low cost, good light and weather resistance, good heat resistance, strong hiding power, and stable hue, but they are slightly inferior to organic pigments in terms of the vividness of hue; organic pigments have fresh colors. Brightness, wide adjustable range of hue, high tinting strength, etc. However, organic pigments often have disadvantages such as higher cost, poor heat resistance, limited light and weather resistance, and poor hiding power. Therefore, inorganic pigments have certain advantages in the use of powder coatings. Among inorganic pigments, some varieties of pigments are toxic (such as those containing cadmium, chromium, and lead). Therefore, iron oxide pigments, as traditional environmentally friendly non-toxic pigments, have become the first choice for powder coatings. In addition, iron oxide pigments also have the characteristics of a full range of hues and a wide adjustable range of colors.