According to the data of Baidu Encyclopedia, the whole brick needs to be watered after being dipped in glue, which can ensure that the moisture between the tile and the wet slurry is not easily absorbed by the dry mortar layer, enhance the sufficient moisture between the wet slurry and the tile, enhance the adhesion, ensure the fluidity of the wet slurry of the tile, and reduce the hollowing.

The whole brick is made by pressing stone chips with high pressure and then firing. After surface polishing, the hardness can be comparable to that of stone, with lower water absorption and good wear resistance.