This is a specially formulated sealer for both internal tiles and external porcelain paving. Even if the porcelain tile / paving is factory sealed it can be used to increase the stain resistance properties of the material, which will make it easier to clean and maintain. This product will not change the look or slip resistance of the material as it is a penetrating treatment. Order tile and stone sealer online with Tile Merchant. Our range of premium sealers are used by professionals across Ireland daily. We deliver to all 32 counties in Ireland. Seal your tiles and stone with the best products at the best price.