X-Tra Seal Archives - South London Tile Doctor

Restoring the Appearance of a Marble Coffee Tabletop in Putney

The photographs below are from a client in Putney, and show what will happen to a Polished Marble tabletop if you try and clean it with Viakal. Marble is made from calcium and magnesium carbonate which makes it acid sensitive, Viakal on the other hand is an acid cleaner blended from Formic and Citric acids resulting in a pH level of 2.2. This product uses the acid to dissolve the calcium and magnesium deposits in Limescale.

Acid Etched Polished Marble Table Before Renovation Putney

To be fair to Viakal the label does state not to use it on natural stone, but who reads the label, certainly my clients cleaner hadn’t. The result was the acid had etched the lovely, polished Marble surface and it appeared to be ruined.

I was happy to re-assure my client that the etching could be removed, however, to do this the table would need to be burnished with a set of diamond pads of different grades. This process cuts into the stone with a coarse pad to remove the etching and then slowly builds back the polished appearance using finer grades of pad. The table was very heavy however so the work would need to be done on-site.

Polishing a Marble Tabletop

Due to the weight of the stone table, it couldn’t really be moved so my first job was to relocate nearby furniture, roll up the rug and cover everything in blankets and a drop cloth. The last thing I wanted was any other possessions getting splashed during the burnishing process.

When polishing Marble floor tiles, I would normally use large 17-inch diamond pads fitted to a rotary floor buffer, however that simply wouldn’t work on a table, so I ordered a set of 6-inch burnishing pads from Tile Doctor instead. These smaller pads fit nicely on a hand-held buffer that would be perfect for this situation.

The burnishing process involves working through the pads in sequence. I started with the coarse 100, 200 and then 400-grit pads applied with a little water, these coarse pads were able to remove the etching and ingrained dirt. The table was rinsed down and then the 800-grit medium pad was applied which is the first step in the polishing process. Again, this pad is applied with water to lubricate, and the table was rinsed down afterwards.

Acid Etched Polished Marble Table During Renovation Putney

The process was repeated with the 1500-grit fine pad and then the 3000-grit very fine pad to bring up a really nice shine to the Marble table, I should mention the last pad is applied dry with only a tiny amount of water sprayed onto the surface.

Sealing a Marble Table

The last step was to seal the stone to protect it going forward. I used Tile Doctor X-Tra Seal for this, it’s an oil-based impregnator and I figured the oil in the sealer would mask any marks that I wouldn’t be able to remove, however I actually ended up removing all the etching so the sealer just gave the stone a really nice colour and gloss.

Acid Etched Polished Marble Table After Renovation Putney

My customer was very pleased with the work and said that the table looked better than it ever had before. NB. For the aftercare cleaning of a polished Marble coffee table like this I recommend the use of Tile Doctor Stone Patina Spray which has been especially formulated for the regular cleaning of stone worktops.

Professional Restoration of a Marble Tabletop in South London

Black Slate Kitchen Floor Renovation Tooting

Black Slate Tiled Kitchen Floor Renovated in Tooting

The photos below are of a Black Slate Kitchen floor at a property in Tooting SW17, which as you can see had lost all its colour and character. I went over to survey the floor and discussed a renovation plan with the owner.

One of the problems was the grout which like the tile hadn’t faired very well over the years and being in the Kitchen was subject to staining. I explained that like all stone floors the Slate needed to be sealed in order to keep the dirt out of its pores and keep it looking its best. Sealers however wear down with use and in this case the floor hadn’t been deep cleaned and sealed for some time.

I costed out a renovation plan which included deep cleaning the Slate tile removing any remaining sealer in the process, renovating the grout, and then re-sealing the whole floor to bring back the appearance of the stone and protect it going forward. Happy with the quote we agreed a date to start the work.

Deep Cleaning a Natural Black Slate Tiled Kitchen Floor

Normally I would use a Tile Doctor product called Remove and Go to remove the sealer, however in this case testing had shown that what was left of the sealer could be removed with Pro-Clean which is also our go to Tile and Grout Cleaner.

I used a strong dilution of Pro-Clean to do this, spraying it onto the floor and leaving it to soak in for ten minutes and break down the dirt etc. Then using a black scrubbing pad fitted to a heavy rotary buffer machine it was worked into the Slate to release the dirt and old sealer. The floor was then rinsed with water and the soiling extracted with a wet vacuum.

The pads can struggle to get into the corners and edges of the floor and the recesses of the grout line. So, to complete the cleaning a handheld scrubbing brush was used and a wire brush run along the grout lines, again with more Tile Doctor Pro-Clean. After another rinse and extraction with the wet vacuum the floor was left to dry aided with a couple of floor blowers.

Grout Colouring and Sealing Black Slate Tiled Kitchen Floor

Once dry the grout was coloured with a Black Tile Doctor grout colourant which is basically painted onto the grout with a small brush and any excess wiped off the tile. This grout colourant gives the grout a uniform appearance and adds an impenetrable barrier over the grout sealing it in and keeping it safe from further staining. Keeping grout clean in a kitchen is always a problem so the colourant will protect it and make it very easy to clean.

Black Slate During Cleaning Grout Colouring Tooting

The last step was to seal the Slate for which I used Tile Doctor X-Tra Seal. This was chosen because it’s an impregnating oil-based sealer that will restore the beautiful dark colour in the stone. Impregnators work by occupying the tiny pores in the stone thereby forcing dirt to remain on the surface where they can easily be cleaned away.

Black Slate During Sealing Tooting

In the subject of maintenance cleaning, I recommend the use of Tile Doctor Neutral Tile Cleaner which is a gentle but effective cleaner that won’t harm the sealer. Many of the floor cleaning products you find in supermarkets etc are not for use on sealed stone, they contain strong chemicals such as bleach etc which will strip off the sealer prematurely so best avoided.

Black Slate After Renovation Tooting

Professional Renovation of Black Slate Tiled Kitchen Floor in South London

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