Wetting agent and dispersant are two different words, their meanings are different, but the effects between them are sometimes difficult to distinguish, and some additives have the functions of wetting and dispersing. Wetting usually refers to the spreading of the liquid of the wetting agent on a solid, while dispersion refers to the mechanical process by which the dispersant makes the pigment particles free from each other. The process of wetting and dispersing involves the displacement of air from the surface of the pigment particles and contributes to the mechanical separation of the particles, so that the pigment particles are evenly dispersed in the paint and can no longer be re-clumped together. The quality of the dispersion effect has a direct impact on the coloring degree, hiding power, transparency, viscosity, fluidity, mechanical strength and so on. The addition of wetting agent and dispersant can improve the efficiency of grinding and dispersion, shorten the grinding time, and help improve the stability of the quality of coating products. It is an indispensable additive for coating products.
