According to the ground humidity and moisture conditions, the ground is too wet to make oily waterproof coating. Can choose JS, EVA and other water-based waterproofing agent or waterproof mortar. Generally applied three to four times, dry well, can do polyurethane waterproof paint, generally smear two to three times, the general thickness of the waterproof layer 2mm, after doing the leveling layer should do a protective layer.