This floor was installed in the house of a client in the town of Trowbridge, Wiltshire, I was asked if I could restore the Slate tiled kitchen floor back to its former glory. The client was having trouble cleaning the floor themselves due to the sealer being worn away and dirt now becoming ingrained into the pores of the slate. I suspect the life of the sealer had been reduced by the use of in-appropriate cleaning products; anything even mildly acidic will overtime eat away at the sealer and reduce its life.
Upon arriving at the house, I undertook some test cleaning to demonstrate to the client the results I would be able to achieve. Seeing how quickly I would be able to make a marked difference to the appearance of the tiles, the client quickly commissioned me to undertake a clean and seal for the entire floor.
Cleaning a Slate tiled floor
My first task was to mix a solution of Tile Doctor Pro-Clean and clean water. This was then applied evenly onto the floor and left to dwell for 15 minutes, allowing for the strong alkaline cleaner to soak into the stone to get underneath any ingrained dirt, and lift it to the surface.
Once the solution had rested on the surface for a short while, I paid particular attention to the grout lines, scrubbing them with a stiff grout brush. Next, I attached a polybrush to a rotary machine and scrubbed all of the tiles thoroughly. I then used a wet-vac machine to soak up any resulting residue.
However, upon further inspection, I noticed some further paint splashes and grout haze. I applied Tile Doctor Grout Clean-Up to tackle the evident grout haze, and used a heavy duty scraper to remove the paint splashes. Once my client and I were happy with the result, I vacuumed up the slurry and gave the entire floor a thorough rinse. It was then left to dry completely overnight.
Sealing a Slate tiled floor
I returned the next day to seal the floor. Firstly, I tested the floor for evidence of damp using a damp meter and, once I was happy that there was no excess moisture to potentially damage the performance of the sealer, I proceeded to seal the floor using Tile Doctor Seal & Go, which provides a durable surface seal and leaves an aesthetically pleasing sheen finish.
I applied a total of six coatings of the sealer, resulting in a marked difference in the appearance of the tiles (as you can see from the photos). She was very happy with her refreshed floor, and I left her with some cleaning and maintenance advice for the future, before making my departure.
Source: Slate Tile and Grout cleaning and polishing service in Wiltshire