Compared with cellulose and acrylic thickeners, it can provide the system better fluidity, excellent film-forming property, leveling property, water resistance and gloss. It has better compatibility than other thickeners. Its rolling coating has no splash. Its use is not affected by the pH value of the system. It also has strong resistance to biodegradation. This product can improve the leveling and hiding power of the product, it has excellent thickening effect, and, it can improve scrub resistance and has no effect on the gloss of the product. In addition, it has high thixotropy and anti-sag performance, and has excellent pigment wetting performance and high viscosity. It is a non-toxic, environmentally friendly polyurethane thickener without tin and toluene.