How to Grout Stone Tiles

Allow the tiles to set for at least 24 hours prior to beginning the grouting process. Check the manufacturer's specifications for the adhesive used on the tiles to determine the proper time that should pass prior to beginning the grouting process.

Mix the grout by following the manufacturer's instructions. Be sure to wear a facemask, as there will be quite a lot of dust until the grout has been properly mixed.

Pour the grout over the tiles, staying close to the spaces between the tiles, known as joints. Be sure not to pour too much excess grout, which will make the excess grout removal much easier.

Use the grout float to force the grout into the joints. Once the grout is in the deepest recesses of the joints, begin to use a 45 degree angle with your grout float to ensure that all joints have a uniform level.

Wipe the excess grout from the stone tiles after the manufacturer's recommended time to wait. While wiping, be sure that all excess grout is removed from the stone tiles, but be sure not to remove the grout from between the tiles.

Smooth out the remaining grout between the tiles using the jointing tool. This will give your job a uniform look. While this isn't necessary, it will make for a much more professional job.

Wait until a haze appears on the surface of the stone tiles, and polish them using a damp washcloth. Check the instructions provided with the grout to ensure you have waited an appropriate amount of time before starting this step.

Apply the grout sealant as instructed by the manufacturer after the grout has dried for at least 48 to 72 hours.