What is the "matting effect"? For example, color, whether it is matte or shiny, is a subjective impression formed by our senses. Light is reflected from a flat surface into our eyes, and we classify it according to its gloss. (white)

To be precise, only part of the light shining on the surface is directly reflected back, and the rest enters the paint film, is scattered internally, and is absorbed by the pigment and the substrate. (Black, yellow)

The intensity of the reflection depends on the flatness of the surface. Mirrors, for example, are well known for their high reflectivity and their surfaces are very bright. In contrast, the surface of the micro-rough paint film scatters light and reflects only part of the light. In this example, a yellow matte surface appears.

The condition for a perfect matting effect is to scatter all the incident light. This also means that the direct rays of light incident on the substrate are diffracted. Otherwise, the substrate will completely transmit light and form a shiny appearance.

The micro-roughness of the surface of the paint film is responsible for scattering the light, thus forming a matte surface.