Acid damaged black limestone patio tiles in Bromsgrove


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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Stains Removed from Limestone Tiled Kitchen Floor in Tutbury


First of all apologies for the quality of the photographs on this page, I clearly need to work on my photography skills. Normally photographs like these wouldn’t make the website site however they did capture the stain quite well so I thought they would be worth including. The customer who lives at a large house near Tutbury had a spillage on the lovely Limestone floor tiles in her kitchen which she tried to clean with different chemicals including bleach which just made the problem worse.

The trouble with bleach is it’s a strong acid which will eat through the sealer on your stone tiles, which in this case resulted in whitish circles you can see in the middle of the photograph below.

Limestone Tiled Kitchen Floor in Tutbury Before Stain Removal

The tiles were overdue a deep clean anyway so the owner called me in to renovate the floor and hopefully remove the staining.

Removing Staining from Limestone Tiled Floor

I started the process by giving the floor an initial clean with Tile Doctor Pro-Clean which is a strong alkaline tile cleaning product. This wouldn’t address the staining problem but my intention was to get the grout clean and also remove any surface dirt and grit from the floor. The cleaning solution was scrubbed in and then rinsed off with water which was then extracted using a wet vacuum.

The best method for restoring the appearance of Limestone floor tiles requires stripping back the surface of the tile and then building back the polish of the stone using a process we call burnishing. To do this we use a set of diamond encrusted pads which come in different grades from coarse to very fine. The pads are applied using a floor buffer machine and each pad does a different job and you start with the course red pad together with a little water and then carry on with the white, then yellow pad again using a little water removing the soiled water along the way.

Although the floor now looked great the bleach had done more damage than first anticipated and had stripped the stone of its natural oils where the spillage had been. To rectify this I applied Tile Doctor Stone Oil to the floor which I’m happy to say resolved the problem.

Sealing Limestone Tiles

Once the Stone Oil has soaked in I followed up with the application of Tile Doctor Colour Grow which is a specially designed stone sealer that penetrates into the pores of the stone protecting it from within whilst enhancing the deep natural colours in the stone. The floor was then left for about one hour to dry before working in Tile Doctor Shine powder with a white buffing pad to give a really deep robust finish.

Limestone Tiled Kitchen Floor in Tutbury After Stain Removal

The floor was transformed after I had finished and before leaving I made sure to advise the owner on the correct way to maintain her floor in future.
 
 

Polishing Limestone Floor Tiles in a Staffordshire Kitchen



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