Of course waterproof! Depends on what waterproof coating you are. Some waterproof coatings don't need to be mixed with powder. For example, GORGIA patented AA-JA waterproof system of metal roof does not need to be mixed with powder. AA-JA metal roofing waterproof system is a seamless waterproof system based on American high-quality 100% pure acrylic emulsion, supplemented by high-quality accessories and reinforced polyester cloth. This system has completely solved the persistent water leakage problem of metal roof once and for all, and its technical performance ranks first in the world. It has super tensile strength, anti-ultraviolet, anti-aging and anti-fatigue, excellent low-temperature flexibility, water-based, non-toxic and tasteless, otherwise, it is non-corrosive and stable in quality, and it is the best metal roof waterproof system at present.
In order to achieve the best waterproof effect, AA-HA, the special waterproof system for concrete roof in Guoerjia, should be powdered. Liquid material: powder (425# white portland cement) = 10:3.5. The coating should be fully stirred first, and then mixed according to the specific gravity.
So if the powder depends on what waterproof coating you use, only by adding it reasonably according to its physical properties can the best waterproof effect be achieved.