Home Products Tiling Tile and pavement mortars Tile and pavement mortars To round out our offering, Cantillana also features a series of tile grout mortars, which are used to fill the joints between the tiles. Mortar for wide joints This mortar is suited for wide grout joints up to 15 mm for both interior and exterior. Mortar for narrow joints These mortars are used for grout joints up to 10 mm. They are available in several different colours. Pavement joint mortars Our pavement mortars are ideal for medium traffic loads. Appropriate for new grout as well as renovating old grout joints.