▎ 摘　　要

NOVELTY - A building waterproof gate has a door unit, a mortar layer and a protective layer. The protective layer is made from raw materials that comprise 17-22 pts. wt. carboxy butadiene latex, 8-10 pts. wt. sodium butadiene rubber, 13-18 pts. wt. titanium oxide, 20-21 pts. wt. phenyl o-hydroxybenzoate, 5-15 pts. wt. potassium nitrate, 3-8 pts. wt. kaolin, 15-20 pts. wt. p-toluenesulfonylhydrazide, acetone, monofluorodichloroethane, polybutadiene latex, sodium antimonate, rosin, hexamethylphosphoric triamide, polyvinyl butyral, graphene, potassium aluminum sulfate and PTFE powder. USE - Building waterproof gate (claimed). ADVANTAGE - The waterproof gate with protective layer has excellent seismic effect, anti-aging effect and long-lasting property. DETAILED DESCRIPTION - A building waterproof gate has a door unit, a mortar layer and a protective layer that are connected in turn. The mortar layer is provided with reinforcing ribs. The protective layer is arranged in an arc shape. The door unit is provided with a cross-beam and is hinged to the cross-beam. A side plate of cross-beam is provided with a mounting plate having positioning pins. The cross-beam is provided with a motor that is provided with a screw in the middle. The screw end is provided with a connecting element that is rotatably connected to the screw and is provided with a strut on one side. One end of strut is hinged to the connecting element. The positioning pins are passed through mounting plate and door unit respectively. The mounting plate is arranged in a triangular shape. The ribs are equidistantly distributed. The other end of the strut is fixedly connected with the door unit whose bottom is provided with a gasket. The protective layer is made from raw materials that comprise 17-22 pts. wt. carboxy butadiene latex, 8-10 pts. wt. sodium butadiene rubber, 13-18 pts. wt. titanium oxide, 20-21 pts. wt. phenyl o-hydroxybenzoate, 5-15 pts. wt. potassium nitrate, 3-8 pts. wt. kaolin, 15-20 pts. wt. p-toluenesulfonylhydrazide, 6-8 pts. wt. acetone, 6-7 pts. wt. monofluorodichloroethane, 7-11 pts. wt. polybutadiene latex, 3-8 pts. wt. sodium antimonate, 7-14 pts. wt. rosin, 6-10 pts. wt. hexamethylphosphoric triamide, 18-22 pts. wt. polyvinyl butyral, 9-16 pts. wt. graphene, 3-7 pts. wt. potassium aluminum sulfate and 15-22 pts. wt. PTFE powder.