Check the suitability of the surface and also the surface manufacturer's instructions. To ensure the uniform colour of the joint, use only material from one batch. Before starting washing, grout must be almost entirely dry, and the joints clean and uniform in depth.
With clean, cold water, mix Servoperl Royal to a smooth, paste-like consistency to a uniform colour. Let the mixture rest for 3-5 minutes (slake time) before mixing once again to ensure a smooth and workable consistency. Remove any foreign material and spacers from the grout joint. Fill in the joints firstly transversely and then diagonally, completely filling them. If the mixture begins to become more difficult to spread, simply mix again to attain proper consistency. avoid adding any water. As soon as the joints start to dry, wipe with a sponge, using as little water as possible.
Sufficient strength has been achieved when the grout can be slightly depressed with a fingernail. Also using a sponge, remove any extra grout traces/film still remaining within an hour. Do not dust off while in a wet state. Any leftover material which has already thickened must not be re-mixed. Avoid direct sun and draughts dur-ing the setting process. It is recommended that freshly grouted outdoor areas, or non-absorbent coating ma-terials, be covered with a plastic poly and kept damp where necessary.
Note: Servoperl Royal may scratch soft polished marble, glass or metal tile. Follow tile manufacture/ fabrica-tor recommendations or test a small area prior to use to determine suitability.