This product is a nonionic surfactant suitable for gypsum self-leveling, cement-based self-leveling and dry powder mortar. It has good wetting dispersibility, can defoam microbubbles, and make the product have good durability and shear stability, and at the same time obtain high strength and compactness. There are few bubbles in the liquid, especially the water-based slurry or mud block which contains almost no air, and its defoaming effect is good. In some dry powders, it shows plasticizing effect and improves the coating rate.