There are many ways to improve the viscosity of anticorrosive paint. The simplest method is to reduce the pigment content in the formula, but the reduction of the pigment content will affect the hiding power of the coating. We have to increase the thickness of the coating to ensure the hiding power, but the thick coating weakens the color expressive power of the pigment.

The use of larger particle size pigments can also reduce the viscosity of the anticorrosive paint, but it will also negatively affect the transparency and color tone of the coating. The coating will tend to be opaque, and the color of the pigment will decrease with different angles. Reducing the volume molecules of pigments, fillers and binders in the coating formulation can also achieve the effect of reducing viscosity, but reducing this index will have a very complicated mechanism for various important performance indicators of the entire system.

The feasible method is to try to use polymers and solvents that will not cause swelling, and try to use pigments that have been surface-treated and can have better electrostatic and chemical synergistic properties with various additives. The most commonly used method is to add a suitable dispersing wetting agent to change the characteristics of the charged layer on the surface of the pigment in order to achieve the purpose of viscosity reduction.