We were contacted by a client from the Welsh market town of Holywell asking for assistance with the renovation of a Welsh Slate floor. The stone floor was in their Kitchen and adjacent dining area and had not been professionally cleaned and resealed for several years. To prevent dirt from becoming ingrained in the pores of natural stone its important to maintain the sealer which does wear off with use.
I visited the property to survey the floor and identify any potential issues and could instantly see that the Slate tiles in the large kitchen and dining area had lost their appearance and were now looking very dull indeed. It was clear the sealer had worn away and the stone now needed some love and care to get it looking as it should. To prove to the point, I ran a small cleaning demonstration on part of the floor and straight away they could see an improvement. Happy with my quote to deep clean the Slate and Grout and then reseal the job was booked in.
Deep Cleaning Welsh Slate Tile Floor Tiles
The first job was to mop the floor with a strong dilution of Tile Doctor Pro Clean which is a strong cleaner, stripper, and degreaser. A strong dilution is best for treating heavy soiled areas and after application it was left to dwell for ten minutes before being scrubbed in with a black pad fitted to a rotary machine and water. This combination released the dirt and old sealer from the pores of the Slate. It normally works on grout lines too but in this case the grout was so dirty I had to use a wire brush to get it clean.
The manual scrubbing is of course a slower process than using a machine but was the only way to get the grout clean. The dirty residue was removed with a wet vacuum and the process was repeated until we were satisfied the Slate and grout was as clean as it could be. After a final extraction with the wet vacuum the floor was then left to dry out naturally overnight.
Sealing a Welsh Slate Kitchen Floor
Returning the next morning the floor was tested with a damp meter to make sure it was ready to seal. The readings were good, so a coat of Tile Doctor Colour Grow was applied which is an impregnating and colour intensifying sealer. This was left to soak into the tiles for ten minutes before rubbing the excess off with a microfibre cloth. This brought out the different natural colours out in the slate and being an impregnator offers a great defence against ingrained dirt.
Once the sealer was dry it was followed by the application of Tile Doctor Seal and Go to give the floor a nice gloss finish which the client had requested. I found it took five coats of Seal and Go to fully seal the floor but as you can see from the final photographs on this page it made an incredible difference.
On their return from work, they were over the moon with the finished result, the floor really had been transformed and fully revived. For aftercare cleaning I recommended they use Tile Doctor Neutral Cleaner which will keep the floor clean without damaging the sealer.