When it is inconvenient to water the concrete surface or use plastic film cloth for curing, the method of coating curing liquid to prevent evaporation of water inside the concrete can be used for curing.

The film curing solution curing is to spray the film-forming solution on the concrete surface, and after the solution volatilizes, it condenses into a film on the concrete surface, so that the concrete surface is isolated from the air, and the water in the closed concrete no longer evaporates, thus completing hydration. This maintenance method is generally suitable for concrete construction in areas with large surface area and water shortage. However, attention should be paid to the protection of the membrane.