Mix the contents of the packaging with recommended amount of cold and fresh water and stir manually or mechanically to bring the mix to homogenous and required consistency. Allow 5 minutes and stir the prepared mix again. Apply the mix onto the tiles, spreading it diagonally, with a trowel or a hard rubber grout knife to fill the joints between them. Then, remove the excess mix. After ca. 10 minutes work the joint surface with a moist sponge rinsing it frequently. Avoid excessive rubbing and washing the joints with too much water in the sponge. This will reduce the water beading effect, compromise hardening, and may lead to discolouration. Smoothen the joint surface with a lightly moistened sponge within 30 minutes from application. Remove mist from tile surface after the grout has cured. The mix remains workable for 40-50 minutes after being mixed with water. If the mix thickens in that period of time, stir it again without adding water. Adding too much water impairs all joint characteristics: strength, curing time and durability. It may also cause discolouration. Use grouts of the same batch number to avoid different shades.