How to use waterproof glue: 1. Clean up the oil and dust from the construction site, and the base surface is dry and free of water stains; 2. Use a thin coating for the first pass, and the coating should be evenly applied, and the coating should not be piled up, so as to avoid the phenomenon that it is difficult to dry out; 3. Brush the second time, after the first time is dry, take the paint not sticky as the standard, and then evenly paint the second time; 4. Ventilate and dry, keep ventilated and dry at room temperature for 24 hours before testing the water. Note for waterproof glue: 1. The suitable construction environment temperature is 5℃-35℃; 2. Before construction, the base surface must be dry and free of stagnant water; 3. If it rains during construction, please stop the construction and protect the construction area; 4. During the construction process, if the viscosity of the glue is too high, it can be diluted with an appropriate amount of water.