Generally, cracks and sinkholes appear in the place where ceramic tiles are laid. Generally speaking, there are several situations:

1. Most of them are cracks caused by improper cement ratio;

2. The matrix is not cleaned up, resulting in cracks on the wall surface;

3. The water in cement is quickly absorbed by the wall, resulting in cracking or hollowing of cement due to rapid thermal expansion;

4. The tiles on the wall are cracked due to the settlement of stairs or the change of the wall itself;

5. The ceramic tile body is soft and hard, and the glaze is thin. Cracking caused by expansion of cement after rapid water absorption;

Note: Generally, ceramic tiles are finished or semi-finished, and will not crack without external influence.

Please let the owner check before use and return the cracked or internally damaged tiles to the manufacturer.