Confused about the need to seal porcelain...
I've tiled my bathroom with Fired Earth's
http://www.firedearthshop.com/epages/FEShop.sf/en_GB/?ObjectPath=/Shops/FEShop/Categories/Browse_Catalogue/Floor_Tiles/Encaustic_Quarry_%26_Porcelain/Terrano&PageSize=200 Terrano Tundra tiles - part...