Cleaning the Limestone Tiled Floor
I used a black buffing pad on my Numatic buffing machine and neat Tile Doctor "Pro-Clean" to perform an initial deep clean on the floor. In order to re-polish the floor and not leave it too porous I then used the a red and then a white diamond encrusted burnishing pad. Even after this some stains remained, so at this point I used Tile Doctor "Reduxa" stone stain remover to attack the stubborn ingrained marks. All of these were successfully removed except for two very deep rust stains which, never-the-less, were reduced in size and intensity by about 70%. After this I used a yellow burnishing pad to return the floor to its original finish. At this point, as one of the tiles was broken at the edge and a piece missing, I used Akemi stone floor repair filler to fill in the broken piece with a filler that is stronger than the original stone.Sealing the Limestone Floor
The next day I returned to seal using Tile Doctor "Colour Grow" Sealer. Unfortunately, I forgot to take a "before" picture until after I had started this job but still the transformation is clear from the photos that I took. When the limestone was fully restored it was found to have attractive bedding lines running through it and to be all-in-all a very nice looking floor.The customer was amazed by what had been achieved and very pleased that she had opted for restoration over the far more expensive option of replacement.
Source: Limestone Tile Cleaning