How to Remove Epoxy Grout from Porcelain Tiles

Detailed below is a great example of why Tile Doctor uses the slogan:

"We Love the Jobs Tilers Hate"
First of all, apologies for the photographs, at this time of year it is tricky to get good pictures when the natural light is poor. If you look closely however you should recognise what is essentially a new installation of Cream Porcelain floor tiles. The work was done at a house in Banbury which is a market town in Oxfordshire. Banbury is a significant commercial and retail centre for the surrounding area of north Oxfordshire and southern rural parts of Warwickshire and Northamptonshire.


The tiler who laid the floor had used an epoxy grout and unfortunately had not polished off the grout quickly enough after grouting and it was now ruining the appearance of the floor. He now found it impossible to remove the excess residue and was unable to offer a solution leaving the problem to the customer to sort out. Fortunately, the client found Tile Doctor and having visited the property to survey the floor and assess the correct procedure required to renovate the tiles. Epoxy grout is a superior product to cement based grout and very resistant to staining however it is trickier to work with and often causes problems. We have come across this problem before however so I knew how to treat it and assured the client it could be resolved.

Removing Epoxy Grout from Porcelain Tiles

The first process was to apply a specialist epoxy grout remover then mix in Tile Doctor Acid Gel, I then scrubbed the resulting solution with a black pad fitted to a rotary machine running at a very slow speed to reduce splashing. The Tile Doctor Acid Gel has a unique pH1 blend of Phosphoric and Hydrochloric acids in a gel form and is perfect for treating grout haze.

The floor was then rinsed with water to remove the soil which was then extracted with a wet vacuum. It was a slow process and I worked in sections until the whole floor was clear. There was still some residue in the grout, so I washed the floor with a medium dilution of Tile Doctor Pro-Clean and scrubbed it into the floor using a medium brush fitted on my rotary machine.

Last step was to give the whole floor a thorough rinse with water, again using the wet vacuum to remove the water and get the floor as dry as possible. The process took about six hours and when I was finished the Porcelain tiles looked much better. There was no need to add any sealant to this floor as this particular make of Porcelain are not porous and won’t accept it.


The client was very relieved to see the floor looking as good as new, it was how the floor should have looked following installation.


Source: Porcelain Tile Cleaning and Restoration Service in Banbury, Oxfordshire

White Floor Grout Refurbished in Bedfordshire Kitchen

This customer called us as she was deeply concerned by several problems with the grout between her large format white Porcelain kitchen tiles. The grout was not only very soiled, but had also cracked and dislodged in places because of her underfloor heating. The constant heating and cooling of the floor had caused the grout to expand and contract – and because it was not the flexible variety, it had cracked quite easily. The tiles themselves were not proving too difficult to keep clean as Porcelain is naturally quite durable. However, every time the customer had cleaned the floor, the grout never really improved in condition. In fact, it was getting worse over time.


A quote was given to restore the grout and the work was booked in the following month. The property was in Studham on the edge of the Chiltern Hills in Bedfordshire.

Cleaning and Re-Grouting for Porcelain Kitchen Tiles

The first thing we did was to protect the kitchen units with a plastic wrap and remove the plinths under the kitchen units to prevent them from exposure to any cleaning products. The tiles were vacuumed to remove any loose debris and dirt, before being washed using a mild solution of Tile Doctor Pro-Clean, which is an alkaline-based cleaner that’s safe to use on tile and grout. As aforementioned, the Porcelain tiles were in good condition to begin with, so the cleaning process was not too intensive. We also scrubbed the Pro-Clean into all the grout lines to remove as much staining as possible, as well as to prepare them for recolouring. Next, the area was rinsed with water to remove any trace of cleaning product and the resulting slurry was extracted using a wet vacuum. The floor was then dried quickly using fans so that we could assess how well the grout had responded to cleaning. Following this, any loose grout was dug out and replaced with fresh grout.

Grout Re-Colouring for Porcelain Kitchen Tiles

Once the grout was fully dry, we started the process of re-colouring it. This was done using our own Tile Doctor Grout Colourant, which seals and rejuvenates grout joints, protecting them from everyday staining and ingrained dirt.


There are 10 different colours of Grout Colourant available in our range, including Charcoal Grey, Black, Cappuccino, Limestone, and White – the latter being the colour the customer opted for this time. The product is applied by hand using a small brush. You allow it to dry partly and then any excess is wiped off the tiles, as once set it is extremely hard and durable.


The pictures above show the difference our grout re-colouring service can make. The customer commented that the work made the floor look newly installed, as she felt it had never looked truly clean before. Another satisfied customer and with the colourant protecting the grout it should stay that way for some time.



Source: Kitchen Tile Cleaning and Sealing Service in Greater Manchester