Cleaning Quarry Tiles
To clean the Tiles and strip off the remaining sealer we used a strong dilution of Tile Doctor Pro-clean mixed 50/50 with Nanotech Ultraclean, the Nanotech product adds tiny abrasive particles to the mix making it a more effective cleaning product. This was left to dwell on the floor for twenty minutes before being worked into the tile using and black buffer pad fitted to a rotary buffing machine. The whole area was cleaned in this manner along with a stiff hand brush to get into the grout lines and a wet vacuum which was used to suck up the dirty residue before the floor was rinsed down with cold water. Once the floor had started to dry it had become apparent that there was still some seal left behind. To resolve this problem I used Tile Doctor Remove and Go which is a powerful coatings remover product. It was left to dwell on the Quarry tiles for ten minutes before being scrubbed in with both a deck brush and black pad. I was still having problems removing all the seal so I then used a steamer with Remove and Go and a stiff deck brush to remove the last of the evident seal. The floor was then thoroughly rinsed the floor several times with clean water to remove any product build up and the ware removed using the wet vacuum.Sealing Quarry Tiles
The floor was left to dry for a couple of days and then I returned to seal the floor first testing it was dry with a damp meter. The floor was fully dry we applied multiple coats of Tile Doctor Seal and Go which will protect the floor from stains going forward making it easier to clean and also adds a nice shine to the tile.Before leaving I advised the customer on the use of a Neutral tile cleaner to help prolong the life of the sealer, there are a number of acidic floor cleaning products available which should not be used with stone or sealed floors as the acid will eat into the sealer over time reducing its life.
Source: Expert Quarry Tile Maintenance site