Although this stage is optional, it can take place a few days after laying new, clean tiles (cement film must be removed in advance without fail).
The tiles should ideally be protected to prevent staining products (grease, ink, etc.) affecting the surface of the product, For this, it is recommended to apply a waterproofing agent one to two weeks after laying. The treatment is applied to clean, dry tiles.
Products to be used :
Special unglazed tile anti-stain waterproofing agent