How to divide the paint into glossy, semi-glossy and matte?
When various pigments are added to the paint, the unevenness of the surface of the pigment particles directly affects the smoothness of the paint film, which also affects the gloss of the paint. When the amount of pigment particles is small, the effect on surface smoothness is small, and the gloss of the paint film is large. On the contrary, the amount of pigment is large, and the effect is large, and the gloss is also small. In paint production, it is by adjusting the amount of pigment to make the paint film form different brightness to meet different needs.
Pigments used in paints have different specific gravity and oil absorption, so the amount of pigment used is not determined by weight. The ratio of pigment to paint is roughly:
In order to improve the adhesion of semi-gloss or matte paint, it is often necessary to add more paint or use less pigment, which conflicts with the gloss requirement. Therefore, matting agents such as aluminum stearate are often added in production to achieve this purpose, rather than relying entirely on the amount of pigment to achieve the purpose.
