Cement curing agent, this product is a new gray-blue colloid curing agent, which is non-toxic, tasteless, non-flammable and harmless to human body. Density 1.26~ 1.3, PH 12~ 13. Has good film-forming property and permeability. When it is sprayed on the surface of initial setting concrete and cement mortar, it can quickly form a continuous waterproof and efficient curing film on its surface, prevent the water in concrete from evaporating, fully hydrate the cement, and achieve the purpose of autotrophic.