My client had recently moved into a bungalow in Godalming where they inherited the Limestone tiled kitchen floor pictured below. The previous owner had not looked after the floor very well and by the time they moved in it was pretty filthy. Limestone is a natural but porous stone where, unless sealed, attracts dirt into its tiny holes and as you would expect Cream Limestone shows the dirt easily. The protective seal had long since worn off this floor and was now ingrained with dirt it was now looking permanently dirty.
 |
 |
Before quoting I conducted a small test clean to work out the best method to renovate the stone and this also gives the client a good idea of how the floor will look after its finished. They were delighted with the initial result and happy with my quote gave me the go ahead.
Cleaning a Limestone Tiled Kitchen Floor
On arrival first I helped the customer remove his tables and chairs and I then set about tapping up the plinths in the kitchen and the skirtings to protect them from cleaning solutions and equipment. The cleaning equipment I have invested in works more efficiently in open spaces, so it’s worth spending time at the beginning preparing the area first.
Next, I used a deck brush to apply a mixture of water and Tile Doctor Pro-Clean to the dirtiest tiles. Tile Doctor Pro-Clean works well when left to dwell for ten minutes or so. I also applied the same product to the grout over half the room so it could get a head start breaking down the dirt. Then using a stiff brush, I scrubbed the grout clean. Once it was worked loose, I extracted the now dirty solution with a wet vacuum.
With the grout clean I turned my attention back to the tiles with where the Pro-Clean had been left to soak in. Giving them a quick brush, I noted that what appeared to be permanently ingrained dirt had now come loose. To get the tiles really clean I used a 17″ rotary machine fitted with diamond encrusted buffer pads. This removes the tiny dots of dirt on the stone and with it comes any existing sealer and dirt.
A set of four burnishing pads were used, starting with a 400-grit, and finishing with a 3000-grit pad. The first 400-grit pad is coarse, and the grits become smoother as you work through the set. Water is used to lubricate the process and the released dirt is extracted in-between using the wet vacuum mentioned earlier. This process does take time but by the end of day one the floor was looking a lot better.
The next step is sealing however the floor needs to be bone dry for that, so I left a couple of industrial fans in place and left the Limestone to dry off overnight.
Sealing a Limestone Tiled Kitchen Floor
Returning the following day my first job was to ensure the floor was dry by taking multiple moisture readings with a damp meter. The readings were good, so I was able to make a start applying the sealer which for this floor was Tile Doctor Ultra Seal.
Ultra-Seal is an impregnating sealer that soaks into those small holes in the stone I mentioned earlier, I occupies the pores thus preventing dirt from becoming ingrained. The other feature of this sealer is it doesn’t change the appearance or colour of the stone leaving it with a very natural finish. Two coats of sealer were applied, leaving the seal to dry between each coat.
 |
 |
After the final coat was dried, I gave it a final polish with a soft nylon pad and the floor was finished. Before leaving we discussed after care which for this floor, I recommended Tile Doctor Stone Soap and I requested that the customer to stay out of the kitchen for a couple of hours while the sealer cured. They were over the moon with the new floor and could not believe the difference it had made to their kitchen.
For the regular cleaning of stone floors we recommend using a specialist cleaning product such as Tile Doctor Stone Soap which helps maintain the patina. Avoid the use of steam cleaners and if you wish to use another product please read the label in detail first, most supermarket tile cleaners are too strong and can prematurely erode the sealer.