:: Terracotta Terracotta tiles are manufactured from natural clays, which causes differences in colour can occur during the firing process. They are also not as highly fired as other floor tiles, and are considerably more porous, so take care to seal the tiles to reduce their natural absorption characteristics. There are three main reasons for sealing the tiles: To protect the brick from wear and tear. To reduce staining and maintenance. To give an aesthetic finish which will enhance the natural colour and beauty of the tile. Sizes: 10 x 10cm, 20 x 20cm, 30 x 30cm All terracotta sealers in stock please ask for details.