8.1. If the tiles are porous or needs to be sealed, do it now before applying the grout. Use a paint roller brush to apply the sealant.
8.2. Allow the sealant to dry for at least an hour.
8.3. Prepare about 6 sq. ft. worth of grout by mixing it to a toothpaste consistency.
8.4. Scoop out a lump of about the size of a baseball onto the tile.
8.5. Push the grout mixture into the crevices of the tile using a grout float. Work the float in several directions.
8.6. Wipe down the grout as the work progresses.
8.7. Clean the excess grout away.
8.8. Use a sponge and small amounts of water to wash away the grout.
8.9. Continue until there is a light film left on the tile.
8.10. Change out the water pail frequently.
8.11. Polish the surface with a cotton towel.
8.12. Grout the next section of tile, clean, and finish all the rest of the sections.
8.13. Grout the backsplash next.
8.14. Use a pigmented caulking, not grout, for the joint between the countertop and the backsplash.