Before and after photograph below of a Quarry Tiled floor at a school in Dunstable that was in such a bad state we had to apply grout colourant to the floor. Quarry tiles are fairly indestructible so ideal for use in schools etc. where they will see a lot of foot traffic and abuse, having said that they will fade with wear over time and naturally the grout can become ingrained with dirt if not protected.
Cleaning Quarry Tiles
It had been a while since the Quarry Tiles and Grout had been given a really deep clean to so we mixed a dilution of Tile Doctor Pro-Clean 50/50 with NanoTech UltraClean and applied it to the floor and left to soak in for around 10 minutes; Pro-Clean is a multipurpose alkaline cleaning product designed specifically for cleaning tile and stone and NanoTech UltraClean adds tiny abrasive particles into the solution to make a more effective cleaner. The floor was then scrubbed using a rotary machine fitted with a black scrubbing pad and the grout lines scrubbed by hand using a stiff brush. The floor was then rinsed thoroughly with water which was removed using a wet vacuum, once the Quarry tiles were dry it was possible to spot the areas in need of further attention and these were scrubbed by hand together with more of the Pro-Clean/UltraClean mix and a steamer. At this stage it became apparent that that although the grout had improved it was too far gone and never going to make the grade and either needed to re-done or as per our suggestion re-coloured.
For floor grout we always recommend the use of an epoxy grout colouring product which not only completely covers the grout making it look new again but also provides a permanent barrier that prevents the grout from staining in future. They can be quite time consuming to apply however especially if you have a small format Quarry tile with lots of grouting.
Sealing Quarry Tiles
Once happy with the floor and it had time to dry off it was sealed with six coats of Tile Doctor High Shine Sealer which will provide future surface stain protection and also leaves a nice deep shine on the floor. It took a long time but I think you will agree from the before and after photograph below we managed quite a transformation.