Shake the tank up and down for one minute before use. The construction surface should be grease free, oil-free, dust-free and full wetted (spray a little water). Use the spray gun correctly. Spray from bottom to top and spray volume to 1/2 of required volume. When the injection stops, turn off the flow valve immediately. When replacing the new tank, use special cleaning agent to clean the spray gun. The normal temperature of the tank is +5 to +35 C. The best use temperature is +18 ~ +25 C. The temperature range after curing is from -30 to +80 C. The surface can be further processed after one hour. When machining, use a knife to trim. This product does not resist ultraviolet rays, and is directly applied to surface coating with cement mortar, paint and paint.