Before accepting the job, I strongly advised the customer that I should be the last workman out of the door. In my experience few tradesmen are known to take care of other peoples work and any further work being done in the property could potentially spoil the appearance of the Slate tiles.
Cleaning a Slate Tiled Floor
The customer was happy for me to proceed, so on the agreed date I returned and started the work by laying down a strong dilution of Tile Doctor Pro-Clean across the floor. Pro-Clean is an alkaline-based cleaner which breaks down all manner of dirt and grime. This was a large area of tiles, so I worked on individual sections of 3m2, first soaking the Slate in Pro-Clean and then waiting ten minutes for it to soak in and then following with a nylon black scrubbing pad fitted to a 17-inch rotary buffing machine to work the cleaning product into the stone. The tiles immediately came up looking much cleaner. Any excess water and chemical slurry was vacuumed up promptly with a wet vacuum. The tiler had done a good job of laying the floor and removing any excess grout as normally my next step at this point would be to give the floor an acid wash, but it wasn’t necessary. Once the tiles had been cleaned to the best of my abilities and given a thorough rinse, I left the property for 48 hours to allow any water that had seeped into the tiles to evaporate. This is important as excess moisture problems can prevent the tiles from being sealed correctly.Sealing a Slate Tiled Floor
On returning to the property a couple of days later, I swept away any bits of dust and debris and then proceeded to seal the tiles with Tile Doctor Colour Grow.This impregnating, colour-intensifying sealer enhanced the stunning natural brown, gold and orange shades in the stone. Two coats of the sealer were applied to achieve a brilliant natural-look finish and robust protection against future wear and tear. Restoring the appearance of these Slate tiles put the finishing touches on this fantastic barn conversion. Needless to say, the customer was very pleased with the results.
Source: Slate Floor Cleaning and Sealing in West Surrey