Лако-красочные материалы — производство

Polymeric leveling additives function through their tailor-made incompatibility in the paint film. During film formation, due to incompatibility, their molecules migrate to the interface. Unlike sili­cones, polymeric additives do not reduce the surface tension of the bulk of the paint film; rather, they reduce the local surface-tension gradient and thus create a physically uniform and flat surface. An important advantage of polymeric leveling additives over silicones or fluorosurfactants is that they do not cause any intercoat adhesion problem.