Many problems will be encountered in the process of laying tiles. If the problems are left unattended, problems such as hollowing, cracking, and falling off will appear later. At the same time, in order to prevent the occurrence of these problems, some measures will be taken, such as wall painting, waterproof surface roughening treatment, etc. But after brushing the wall, is it still necessary to do brushing?

There are many reasons for the cracking, hollowing, and shedding of ceramic tiles in the later stage, such as: the original wall is empty, cracked, the wall is uneven, and the strength of the base layer of the wall is not enough. The original wall surface is hollow and cracked. Before laying tiles, the entire wall surface needs to be reprocessed. If the wall surface is uneven, it needs to be leveled. force.
The role of brushing the wall

1. The wall solid has solidified cement to prevent the cement from falling off, thus solving some minor problems such as loose walls and sanding from the side. Moreover, the wall solid has strong penetration ability, which can enhance the adhesion of the wall surface on a certain basis.

2. The wall inherently connects the previous and the next, which not only protects the original wall, but also does not affect the adhesion between the wall decoration material and the original wall.
Therefore, the general wall surface can solve the problem by painting the wall, and there is no need to do more. When laying the tiles, it will be roughened to enhance the adhesion between the tiles and the wall.

The role of napping treatment

Spaces with heavy humidity such as bathrooms and kitchens need to be painted with a waterproof layer, and the waterproof layer has a certain degree of water repellency. If the tiles are directly laid, the tiles will fall off due to insufficient bonding strength, and the roughening treatment is through strengthening The roughness of the surface of the waterproof layer can improve the bonding strength between the cement mortar and the ceramic tile.