Vinegar-Stained Tumbled Beige Limestone Kitchen Floor in Kinross
The photos below are from a job I completed earlier this year at a property just outside of Kinross with a Tumbled Beige Limestone Kitchen Floor. The customer had managed to stain the limestone tile with Vinegar which had spilled onto the surface, leaving white etching. Several cleaning methods and products were tried but nothing worked and so I was asked for help.

Limestone is acid sensitive and vinegar contains Acetic acid with a pH of around 2.5 which unfortunately marked the surface of the stone. The only way to remove it would be to burnish the stone with a series of diamond pads of different grits which would cut through and refinish its appearance.
The trouble with this approach however is it would leave the affected section of flooring looking slightly different from the rest so I recommended the best course of action would be to clean and burnishing the whole floor and then reseal. The floor was due a clean and seal anyway so happy with my quotation and requesting a natural look finish a date was scheduled.
Cleaning Tumbled Beige Limestone Tiled Flooring
Burnishing the floor involved the application of a set of diamond burnishing pads of increasing grits. The first pad applied is a coarse 400-grit which cuts through the dirt and staining on the floor, the pad is applied with a dilution of Pro-Clean and fitted to a rotary machine with extra weights added for increased traction.
The pads can struggle to reach into the recesses of the grout line so more Pro-Clean was scrubbed into the grout using a stiff brush to lift dirt that had becoming lodged there. This process generates a fine slurry which was rinsed away and extracted with a wet vacuum.
The 400-grit pad was then swapped out for a finer 800-grit which is the first stage in the polishing process and the burnishing repeated using only water this time. After more rinsing and vacuuming the process was repeated again using a 1500-grit. The last pad is a super fine 3500-grit that really brings up the polish and this is applied dry with only a little water sprayed onto the tile.

The polishing removed the Vinegar staining and added a lovely subtle sheen to the Limestone and left it looking spotless.
Sealing a Limestone Tiled Hallway
The last step was to seal the Limestone which protects the stone by keeping dirt on the surface where it can be easily cleaned away. As mentioned, a natural look was specified so Tile Doctor Ultra-Seal was selected to seal the floor, this is an invisible impregnating sealer that doesn’t change the look of the stone.

Once complete the floor looked like a new installation and the fresh sealer should keep it that way for many years to come. For aftercare cleaning I recommended the use Tile Doctors Neutral Tile Cleaner which is a gentle but effective product that won’t degrade the sealer.
Professional Restoration of a Limestone Tiled Kitchen in Edinburgh
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