What method should be chosen for the parts of the toilet and balcony ceiling that are susceptible to

I also use paint for the roof of my bathroom, because I have done paint engineering before. The specific operation method is as follows: 1. Use good white cement and 801 glue and putty to scrape 2 times (there are a lot of fake white cement and glue on the market now, you must buy pure white cement and pure glue without talcum powder) 2, and then use sandpaper to smooth the surface of the putty 3, and then brush the primer (the covering primer of the exterior wall must be brushed and brushed thoroughly.

Let the putty absorb it thoroughly) 4, and then brush the exterior wall with latex paint.

During construction, it is necessary to ensure the dryness of the bathroom, and pay attention to the thickness of the putty, not too thick and not too thin. Before scraping the putty for the second time, make sure that the putty has dried for the first time, and under normal circumstances, you can scrape the putty for the second time in about a day and a half.

The ceiling of these two parts has another meaning. The wall bricks must be paved, the wall tiles are paved from the bottom to the top, and it is definitely not a whole brick when it reaches the top, and a part of it needs to be cut down, and the cut edge will not be as uniform as the whole brick edge, it must be ugly, so use the ceiling to cover up those broken edges. Unless the wall is not tiled, use waterproof putty to scrape the eaves paint, but the bathroom is not ventilated and easy to mildew.

With Kuaitongmei paint, it can be scrubbed.