What is nap therapy?

Brush coating is a construction method, which is mainly used in the construction process of tiling. Because the smooth wall is not very safe and firm after a long time of tiling, it will cause quality problems and fall off. There are several ways to take a nap. One is to cut many grooves in the wall with a cutting machine, and then stick tiles. The other is to dip the broom in cement slurry water and pat it on the wall, let the cement water seep in, form a knot in one's heart on the surface, and then paste the tiles;

The last one is high-pressure water roughening, which uses ultra-high-pressure water jet to draw many deep grooves directly on the wall surface, making the attached tiles very firm.