Limestone is a very tough stone so to clean the tile and rebuild the polish it would need to be burnished using different grades of Diamond encrusted pads and then sealed to protect it from ingrained dirt and stains. It’s worth noting that polished stone tile does need to be regularly maintained if you want to keep up its appearance and Tile Doctor does offer this as a service.
Cleaning Limestone Tile and Grout
Before working on the tiles I decided to treat the grout to a good old fashioned scrub with a strong solution of Tile Doctor Pro-Clean and stiff grout brush. This soon got the grout clean and the soiled cleaning solution was then rinsed away with water and then extracted with a wet vacuum. Next step was to start the burnishing process using a coarse pad which was attached to a rotary buffer and then, using a litre of water per square metre as lubrication, I cleaned and stripped away any remaining sealer. Once I'd removed any excess residue with the wet-vacuum, I changed to the a medium grit pad, repeated the cleaning process, and again extracted the soiled residue. Finally, I completed the process once more with the fine grit pad. Once this was completed I buffed the floor with a soft white pad to clean up any dried residue, leaving it ready to be sealed.Sealing Limestone Tiles
Two days later, once the floor was completely dry, I returned to the property to seal and polish the floor. To begin, I restored the shine to the tiles by applying the last of the four burnishing pads - the very fine grit pad. To seal the Limestone I applied Tile Doctor Ultra Seal which is an impregnating sealer that soaks into the pores of the Limestone to provide durable protection against ingrained dirt without changing the natural look of the tile. After an hour, the floor was ready to be buffered once again to bring up the shine and then we were done.I was very pleased with the result and more importantly so did the customer who left the following feedback "All work very professionally carried out, floors are sparkling.”
Source: Limestone Tile Cleaning & Polishing Service in Surrey