Using Pro-Clean to Turn Black Grout White again on a Travertine Floor in the Wirral
Although the Travertine tiles in this beautiful kitchen floor in Thurstaston were in fair condition the Grout had turned black with dirt. This normally happens when the stone is sealed but the grout has been left unprotected, then when cleaning the floor dirt is washed off the stone into the grout line where it gets trapped in the rough surface of the grout. Overtime the dirt builds up and the grout lines turning it black and completely changing the appearance of the floor.
After visiting the property, I could see the polished appearance of the Travertine had faded and the sealer was wearing thin, so I recommend not only cleaning the grout but also burnishing the stone to deep clean it and restore its polished appearance.
Burnishing and Cleaning a Travertine Kitchen Floor
To get the best from a stone floor, we apply a set of Diamond encrusted burnishing pads of different grades starting with a coarse 400 grit pad run over the tiles using a strong dilution of Tile Doctor Pro-Clean. Once the pad had been run over each tile at least three times attention was turned to the grout lines which was scrubbed with more Pro-Clean and a stiff brush. Afterwards the floor is rinsed down with water and then the dirty residue is extracted with a wet vacuum.
The 400-grit pad was followed by the application of a medium 800-grit pad using only water this time to add lubrication. Again the floor is rinsed with water after use and the soiling extracted with the wet vacuum. The next two pads are a Fine 1500 grit and Extra Fine 3,000 grit which really build up a high-quality polish on the stone. Before applying the 3000-grit I spent some time filling in the larger pits (holes) in the Travertine with an epoxy filler. Travertine is notorious for having this problem and being an acid sensitive stone it very important not to use even a mildly acidic cleaning product as this can make the problem worse.
Sealing a Travertine Tiled Floor
The floor was left to dry off fully overnight and I returned the next day to seal the Travertine first checking with a damp meter that the stone was dry. The customer wanted a natural look finish to the Travertine, so to seal the tiles I applied two coasts of Tile Doctor Ultra Seal which is an impregnating sealer doesn’t change the look of the stone in anyway. Ultra-Seal is an impregnating sealer that works under the surface by occupying the pores in the stone thus preventing dirt from becoming ingrained there.
Once the sealer had dried the floor was treated to a gentle buff with a white pad to bring up the shine even further. Once complete the stone looked a lot healthier and the grout looked so much cleaner.
Source: Travertine Tile and Grout Cleaning and Sealing Service in the Wirral