Believe it or not the pictures below show a brand-new installation of black Limestone tiles in the kitchen and dining room of a house in Wixams which is a new town right in the centre of Bedfordshire.
The tiles looked terrible and on closer inspection I could see that they were heavily covered with grout haze. The customer thinks the tiler was in a hurry to get the job finished, unfortunately if not washed off immediately and allowed to dry before sealing grout haze can become a real problem.
To make matters worse the tiler had sealed over the top of the grout haze hoping to hide his mistake which simply made the problem worse. The property was a new build so the client called in the site foreman to rectify the issue and he was advised to get someone out to assess whether anything could be done.
I inspected the floor and after carrying out a test clean on one tile which the customer was happy with the results and the work was booked in for a couple of weeks’ time
Deep Cleaning Limestone Floor Tiles
When I returned on site I masked up the kitchen units to protect them and then sprayed on a solution of Tile Doctor Pro-Clean to break down the sealant before washing and rinsing aided by a rotary machine fitted with a scrubbing pad and a wet vacuum to extract the soiled solution.
Once the sealant was removed I was able to tackle the grout haze by applying Tile Doctor Grout Clean up diluted at a ratio of 3:1, I needed a strong solution as the grout smears were quite significant. The solution was allowed to dwell for a few minutes before agitating and adding more water before rinsing. I worked in areas of 3 square metres at a time so as not to leave the product on the floor too long until the whole floor had been treated. After I was happy all the grout haze had been removed the floor was given a final rinse and as much moisture removed from the floor as possible with the wet vacuum.
Sealing Limestone Floor Tiles
I allowed the tiles to dry off overnight before returning the next day to finish the floor starting with the application of a single coat of Tile Doctor Stone Oil to restore the natural black colour into the stone:
One this had dried I proceeded to seal the floor with two coats of Tile Doctor Colour Grow
sealant, each coat was polished in by hand leaving an hour for drying between coats, I then waited another hour before giving the whole floor a final polish with a buffing machine to remove any excess sealant.
The result was quite a transformation and the customer was very happy, I also provided advice on how to clean the floor in the future using Tile Doctor Neutral Cleaner
which is a PH neutral cleaner designed for use on sealed stone.
Source: Limestone Tile Cleaning and Renovation Service in Bedfordshire