Tile adhesive and grout is used for bonding and sealing tiles. Tile adhesive is applied first to fix tiles to wall or floor surfaces. Grout, also known as grout sealer, is applied afterwards to fill in gaps and seal tiles by affectively forming a fluid concrete. For best results apply with patience by working in small areas, ensuring the area is combed so the tiles have something to grip onto. Available in powder or ready mix variants which are suitable for interior or exterior tiles. Depending on the brand and formula, some are waterproof and mould resistant. With many different colours available for you to colour match with your tiles.