Earlier this month I was in the town of Northampton, to see a client who had reported a problem with her Travertine kitchen tiles. Basically the grout between the tiles was badly stained, to the point of appearing almost black.
Cleaning badly stained grout
My priority was to address the badly stained grout so I cleaned the grout lines by hand using a combination of hand brushes and Tile Doctor Grout Clean-Up. The surface was pre-wet with water, before a solution of Grout-Clean Up and clean water was applied to the surface. The brushes were then used to agitate the solution. Grout Clean-Up contains a mix of concentrated phosphoric acid and cleaner designed to penetrate below the surface of the grout to remove grout stains, smears and mineral deposits.
As you can see from the photos, Grout Clean-Up made an immediate difference to the appearance of the tiles. This product is suitable for use on masonry and acid resistant surfaces. After completing the clean, I gave the floor a thorough rinse to neutralise the floor after cleaning and removed as much of the water as possible using a wet vacuum.
Burnishing Travertine tiles
Following this, I paid attention to the tiles themselves, cleaning them to achieve a polished effect by using a system of burnishing pads. Tile Doctor burnishing pads comprise a set of four pads varying in grit type, from Coarse and Medium to Fine and Very Fine. I applied all four pads in turn to the floor, stopping to rinse the floor in between each. The result was a high quality polished finish.
I then left the floor to dry completely overnight, before commencing the seal the next day. My choice of sealing product was Tile Doctor Colour Grow which is a colour intensifying sealer that both enhances the natural appearance of the stone and provides a durable surface seal.