Porcelain stoneware is fundamentally characterized by very low liquid absorption, which is why it must be clarified before application whether the respective surface still has absorbency or, similar to a glazed surface, does not absorb any liquid.
For absorbent surfaces, we recommend using our Stone sealing with long-term and deep effect , ours for non-absorbent surfaces Premium sealing for glass and ceramics .
Before applying the surface, we recommend creating a test surface in order to test the absorption of the sealant and its effectiveness.