We recently received an enquiry from a customer in Ealing, East London who was concerned about their Marble Tiled Shower which had been damaged from the use of Viakal Limescale Remover. Unfortunately, this is a very common problem and we often receive calls from customers with similar issues. Limescale removal products such as Viakal and Cillit Bang are very effective but like any acidic product, they are very harmful to natural stone such as Limestone and Marble. With any cleaning product you should really read the label before use and in this case you will find they state the product should not be used on natural stone.

The Viakal had etched the surface of the Marble in several places where it had been applied and although the damage looked really bad I was happy to inform my customer there is a solution and that I could indeed restore the appearance of the stone.

Polishing Damaged Marble Shower Tiles

My first task was to give the Marble tile and grout a good clean and remove any sealer and soap scum etc; to do this I used a strong dilution of Tile Doctor Pro-Clean scrubbed in with a small black scrubbing pad fitted to a hand-held machine. The Marble tiles were then rinsed with water to remove the soil generated by the cleaning process.

To fully restore the appearance of the Marble the next step required the application of coarse burnishing pads applied in sequence from very coarse to very fine using six-inch pads fitter to a handheld buffer. It’s a process that takes the polish off the stone and rebuilds it. A little water is needed to help lubricate with the coarser pads and the tiles are rinsed off between each one to remove any slurry generated during the process.

To achieve a very high shine the Marble tiles were then treated to an application of Tile Doctor Shine Powder which involves buffing crystallising polishing powder into the stone to build a deep durable finish

Sealing Marble Shower Tiles

The last step was to seal the Marble tile and grout to protect it going forward. Before sealing we needed to make sure that the tiles are dry and a damp meter is a very useful tool for this. A single coat of Tile Doctor Colour Grow was applied which is an impregnating sealer that occupies the pores in the stone whilst enhancing the natural colours in the Marble in the process.

The work took three days in total but as you can see from the photographs on this page it was well worth the effort and the white streaky damage caused by the Viakal has now been removed and the stone has been transformed. My customer was very happy with the results and left the following feedback.

I had serious acid etchings from spraying Viakal on my marble shower box and basin. Didi and his partner did a good job of polishing out the majority of the acid etchings. It was a 3 day job for them, and over all I was happy with the result and service.
Edward T, London

Source: Marble Tile Cleaning and Renovation Service in London