Can the bathroom waterproof paper be waterproof with 2 overlapping adhesives?

According to your situation, there are three preliminary reasons, 1 is that the water pipe joints are not handled well when you are doing hydropower renovation in your home, resulting in leakage of the joints in the later stage; 2. There was a quality problem when the previous decoration was waterproof; 3 is external leakage. The task of waterproofing is to treat the root cause rather than the symptoms, first analyze the root cause of your home water leakage, and then solve, if you leak at the door of the bathroom, if you redo the local at the door is impossible to solve the actual problem, maybe not leaking at the beginning, but after a long time the water will appear in other places, I hope you take it seriously, if your bathroom is close to the balcony or exterior wall, the hidden danger of leakage comes from the window, balcony, the reason is that the aluminum alloy doors and windows of the window and balcony are installed, waterproof, Leak-proof process can not meet the standard or unqualified, resulting in leakage every heavy rain, if the decoration is not changed, it is necessary to take remedial measures, the specific methods are: window sill installation, another waterproof and leak-proof agent, the outdoor part of the excavation of the original waterproof glue, re-marked with special waterproof glue.

If it is the first reason, you can check all the hot and cold water faucets, the specific method is to put the usual napkin into the joint, if there is no water for 5-10 minutes, it means that the external joint is in good condition, which means that there is probably a problem with the internal pipe joint; If the second reason is that the water leakage phenomenon comes from bathing or domestic water, then it is okay to follow your method. As for your family's "polymer waterproof paper", it should actually be called "polymer polypropylene", its own practice is to use dry glue powder mixed with water to dissolve and cement mixed together to stick, the firmness of the combination of the two is completely fine, do not need to be too entangled in this, individual families do not use dry glue powder, but use 805 glue and cement together, but the effect of both is the same, the life of this practice is generally 10-30 years. In addition, the bathroom door opening should be installed not afraid of water stone, in its root should be waterproof treatment, to prevent water from the door hole to the living room seepage, before the installation of the threshold, are filled with cement mixing, to dry up and then place the door and door, so that the daily cleaning of the bathroom, the kitchen of the flow of water effectively blocked and spaced, effectively achieved waterproof, leak-proof effect.

If you can, replace the original one and let them make it more reliable for you, and it's best to try it for a few more days, more than a week, and then there will be basically no problem.

What you're talking about is the use of polymers, and the two can be completely combined, and if the workmanship is fine, it won't leak in five years.

If there is no water leakage for 20 hours, there should be no water leakage.