The grouting of your stone tiles should commence approximately 12 to 24 hours after the stone tile has been treated with a primary Seal of Lithofin Stain Stop. This will reduce the porosity of the tiles and discourage ‘picture-framing’ or edge-staining. We recommend Ardex grouts for natural stone tiles. Follow the manufacturers’ recommendations when mixing up the grout.
There are two methods used to fill the joints or gaps between the stone tiles:
- Pointing – the grout is pushed into the joints using a grout float/squeegee until flush with the surfaces. Wipe off excess as detailed below.
- Slurry grouting – spread the grout across the whole face of the stone tiles, working the grout into the joints using a grout float/squeegee. Slurry grouting is used to fill in any holes in the surface of the tiles such as tumbled unfilled or antiqued travertine, some limestone tiles and marble stone tiles. Remove excess as below.
Please note that only a manageable area should be grouted at a time to enable surplus grout to be removed before it dries. Clean the grouted area using a wet grout sponge, wipe several times, rinsing thoroughly between wipes. Care should be taken not to leave grout on the tile face, as it may be difficult to remove the residue when dry.
On completion of the grouting, the natural stone floor or wall tiles should be wiped over again to ensure that all grout residue has been removed. Once the grout has dried, the stone tiles should be buffed or polished with a clean, dry cloth to remove the ‘bloom’ (a dusty, cloudy residue). If there is still any excess grout on the floor after it has been cleaned, Lithofin Power Clean may be used to remove this.
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