1 Sealing not a long open-air exposure, to prevent rain, exposure to chemicals and pollution do not strong. 2 in the transport and construction, to prevent mechanical, steel water stop damage. 3 construction process, the water stop must be firmly secured to prevent displacement occurs when pouring concrete in the concrete to ensure proper water stop position. 4 fixed water-stop method: the use of additional reinforcement fixed; special fixtures fixed; wire and template fixation, when For perforation, can only be selected in the water stop edge of the mounting area can not damage other parts.