Polishing Black “Negro Marquina” Marble Shower Tiles in Thame

I received a call regarding a Black Marble tiled shower that the customer thought he would clean himself and ended up unfortunately making worse. Black Marble adds a very opulent and elegant look to a bathroom, and I suspect this particular variety with the white veins is known as “Negro Marquina” which comes from the Basque region of Spain. I did a quick price check on-line and these tiles are priced around £60 each!

Black Negro Marquina Marble Shower Tiles Before Polishing Thame

If you look closely at the before picture you can see the Marble has lost its shine and has a cloudy appearance. This was due to the use of an acid based cleaner. Thame and Oxford lie in a hard water area, so we often find customers seek to remove Limescale deposits off tile using household products such as Vikal or Cillit Bang. The trouble with these products is they are acidic, and marble is acid sensitive so is easily marked and damaged by their use. You should always read the label before using any cleaner to check if its safe to use on natural stone.

The client was desperate to get the shower room looking how it should when he had selected this beautiful stone.

Cleaning a Marble Tiled Shower

To rectify the problem and restore the polished appearance of the marble I burnished the stone using a small 6 inch 200-grit diamond pad attached to a handheld buffer. This coarse pad cuts back the stone surface to remove the etching, I then used a 400-grit pad which removed the fine scratches made by the first pad. This was followed up with an 800-grit pad which starts the honing process which restores the polished appearance. Water is used to lubricate the process and the tiles are rinsed with water after each stage to remove the fine slurry that is generated.

This is further followed by 1500 and 3000 grit pads the last pad is applied dry with only a little bit of water and leaves the tiles dry and ready for the next stage.

Polishing a Marble Tiled Shower

To further build the polish and protect the stone I applied Tile Doctor Shine Powder buffed in with a white pad. This was applied to the marble wall tiles and then rinsed with water and wiped dry with a clean cloth. When the tiles were fully dry, I buffed the tiles with a clean white pad to show the final polished finish. The tiles looked much improved and very shiny.

Black Negro Marquina Marble Shower Tiles After Polishing Thame

The job was completed in a day and the customer was much relieved that I was able to restore the appearance of the marble. I suggested that he should use Tile Doctor Aqua Pro as his tile cleaner of choice in future. This is pH neutral so will not damage the tiles like the acidic products he had used previously, and it should help him keep the shower room looking sparkling and opulent as initially intended!

 

Professional Restoration of a Marble Tiled Shower in Oxfordshire

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Acid damaged black limestone patio tiles in Bromsgrove

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A local company in Bromsgrove were commissioned to lay a stunning and expensive Black Limestone patio for a customer who was renovating their property. Unfortunately, the company tried to clean the finished patio with brick acid, and because limestone is generally very porous and acid sensitive this discoloured the tiles to a rather unsightly, dull grey – a far cry from what their customer was expecting!

Acid Damaged Black Limestone Patio Before Restoration Bromsgrove

The company facing a large bill contacted Tile Doctor for expert advice to see if the beautiful tiles could be restored. If Tile Doctor couldn’t come to the rescue, then the company would have no choice other than to replace them at their own expense.

Acid Damaged Black Limestone Patio Before Restoration Bromsgrove Acid Damaged Black Limestone Patio Before Restoration Bromsgrove

Black limestone paving has become incredibly popular over the last few years as its dark tones suit the current trend for a monochrome palette. It is also hard wearing and readily available.

Tile Doctor specialise in the restoration of all types of tile and stone and as their local agent, I was asked to go over and see what could be done. I realised that the brick acid will have damaged the surface of the stone so to restore it I first tried applying a coarse 200 grit diamond burnishing pad. The pad successfully demonstrated that the appearance could be restored and impressed with the difference the site foreman booked me in to complete the whole patio. Luckily the weather forecast was set fair for a few days, which would be needed to clean and seal the patio.

Restoring an Acid Damaged Limestone Patio

Made with industrial diamonds and available in different sizes and grits, burnishing pads are ideal for restoring the appearance of polished stone floors. The first step was to work on the tiles with a course 200 grit diamond pad fitted to a weighted rotary machine and lubricated with water. This took off a layer of the limestone, bringing back the original black appearance of the tiles.

Acid Damaged Black Limestone Patio During Diamond Pad Polishing Bromsgrove Acid Damaged Black Limestone Patio During Cleaning With CRB Machine Bromsgrove

Next the patio was worked on with 400 grit diamond pads followed by 800 grit pads – the first stage of polishing – and each application was cleaned off with water. Because the property was being renovated there was a lot of dirt on the tiles and grout from construction, so I scrubbed in medium dilution of Tile Doctor Pro-Clean using a CRB (counter rotating brush) machine. Once done I rinsed down the area with more water and left it to dry. As you can see from the pictures it was a large area, so this work took two days to complete.

Acid Damaged Black Limestone Patio During Cleaning Bromsgrove

Sealing Limestone Patio Tiles to Restore Colour

I returned the next day to start the sealing process beginning with the application of Tile Doctor Stone-Oil which restores the deep black colour and texture to the limestone, it’s also an impregnating sealer that adds protection and improves mechanical strength once cured.

I allowed this to dry for 24 hours and then applied a coat of Ultra-Seal, a no-sheen natural-looking sealer formulated to provide maximum stain protection.

Acid Damaged Black Limestone Patio After Sealing Bromsgrove

The customer was very happy with the results. The patio tiles were fully restored to their original glory and their customer was delighted. More importantly, the company had been saved from making an insurance claim. They left the following feedback on completion:

“Great job by Kieron after the wrong cleaning solution was used on a patio we installed. Came up better than new!”

Acid Damaged Black Limestone Patio After Restoration Bromsgrove Acid Damaged Black Limestone Patio After Restoration Bromsgrove

 
 

Professional Restoration of a Black Limestone patio Near Birmingham

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