This beautiful Brazilian Slate tiled floor was installed in the cellar of a house in Urmston, Manchester; the slate has never been sealed as so as you would expect it dirt soon became ingrained into the pores of the tile and it lost its appearance.
Cleaning slate Floor Tiles
I gave the floor a good deep cleaning using a dilution of Tile Doctor Pro-clean which is an alkaline cleaner safe to use on natural stone such as Slate; I should mention this is an industrial strength product and it’s very good at removing general dirt, grime and even grease. I let the product soak into the tile for five minutes before scrubbing it into the slate using a black scrubbing pad fitted to a rotary machine. Pro-Clean was also used along the grout lines to get them clean, although this had to be scrubbed by hand with a stiff brush. Finally I gave the floor a through rinse using hot water to make sure that no chemical remained on the tile before sealing and then left for the evening so the floor could dry.
Sealing Slate Floor Tiles
The next day I checked the floor was dry and then began to seal it using five coats of Tile Doctor Seal and Go which provides stain protection and leaves a nice shiny finish.
I think you will agree the Brazilian slate tiles look much improved.