How To Grout Slate Floor Tiles

Select an area 2 to 3 feet square to begin and apply the grout with a rubber faced trowel to spread the grout across the slates working it into the channels between the tiles.

How to grout slate floor tiles.

Once you have done this only use the other side of the sponge and only once. Scoop some grout onto the tile floor with a trowel. Begin in the corner farthest from the doorway and work backwards. Use a grout float to press the grout into the space between tiles.

To avoid spreading the excess grout across your tiles use one side of the sponge to wipe along the joint. Fill a plastic spray bottle or a small pump sprayer with grout and tile sealer and spray the slate tile evenly making sure to get the sealer on the inside edges of the tiles. Then start to apply the grout into the lines and joints in between the tiles by pressing it downwards. Press the tile into the opening on the floor.

It is best to use unsanded grout for slate floors. By sealing your slate tiles you are blocking the pores of the stone this will then enable the grout to float over the pin head sized holes on the stone not stick within the pores the grout should now be easily removed when it is applied you are now ready for grouting the slate tiles. Scoop a small amount of grout on a grout squeegee. Replace or reinstall any remaining damaged or lifted slate and let the floor dry overnight before grouting.

Scrape away any excess grout. First move the grout float a specially designed smoothing tool that features a flat and mostly firm rubber pad.