Yes polished porcelain tiles do require sealing. This is because the surface of the porcelain tile has microscopic holes in it. These are produced by the polishing process. When the tiles are being installed adhesive and grout can become stuck in these microscopic holes and produce an effect called ‘grout haze’. This makes the surface of the tile appear dull and dusty. To prevent this use LTP Polished Porcelain Sealer before installation and after installation. This will help prevent grout or any liquids becoming stuck to the surface of the tile.
For further advice on sealing porcelain tiles speak to our friendly customer service team on 01473 805959.