1. Allow the adhesive to dry. The joints should be filled using a suitable stop mould grout.
2. Clean out any dust, dirt and adhesive from between the tiles and make sure that the joints are dry.
3. Approximately 3 parts grout powder should be added to 1 part water, ensuring that the powder is added to the liquid to prevent the product from flash setting. Manually mix the grout to reduce the amount of air incorporated into the mix.
4. Holding a soft rubber grout float at 45°, sweep the mixed grout diagonally across the tiles, ensuring that the grout is pushed fully into the joints.
5. Clean off as much grout from the surface of the tiles as possible and allow the grout to become touch dry. Clean off the grout residues with a damp sponge wiped diagonally across the tiles.
6. Allow the tiles to dry and buff the surface with a dry cloth. Any stubborn residues may be cleaned off with washing up detergent mixed with warm water within 24 hours of grouting.
NB. Before grouting commences trial a small inconspicuous area to check that the grout does not stain the tiles. If there is any risk of staining, the tiles should be fully sealed using a proprietary sealer before the grouting begins.
Note: All the adhesives and grout mortars used to fix the stones should be mixed in accordance with the instructions given on the manufacturers’ product data sheets and bag instructions.