Conclusion

Mica has become an integral ingredient in automotive paint formulations, providing both aesthetic and functional benefits. With its ability to enhance the beauty and durability of automotive finishes, coupled with advancements in application technologies, mica will likely continue to play a vital role in the evolution of automotive coatings. As automotive manufacturers strive for innovation and sustainability, the importance of mica as a valuable natural mineral will only grow, helping vehicles shine on the roads for years to come.

Take pearlescent pigments as an example, pearlescent pigments are a class of pigments with pearl luster, which are deposited on the substrate (generally natural mica, synthetic mica, glass sheet and other sheet-like materials) above a layer or alternately deposited multiple layers of metal oxides or non-metallic oxides and formed a flat sandwich body with a structure similar to sandwich. Due to the difference in refractive index between the substrate and the oxide deposited on its surface and each oxide, when the light shines on the surface of the pearlescent pigment, the incident light will be refracted and reflected at the interface of each layer of the pearlescent pigment, and the color of the pearlescent pigment that people see is the result of the superposition of light after multiple refractions and reflections of the light, that is, the interference phenomenon of light.