Grain Size, Hiding power and Drying

In the production of pigmented or powder-based coating materials, achieving a fine distribution of particles is crucial to ensure a smooth, agglomerate-free film surface. Since pigments represent a significant cost factor, the formulation contains only as much pigment as necessary to achieve the desired opacity. The drying characteristics of a coating are also crucial, whether applied manually or automatically. Coatings with volatile components typically dry from the outside to the inside, and different degrees of drying describe the progress of the process.