The Red Sandstone flagstones at this property in the historic market town of Kirkby Lonsdale had been covered with carpet and underlay and to make matters worse it had a screed level laid on top of the stone to make the floor smoother to walk on before the carpet went down. The current owner of the property had discovered the floor under the carpet and was now keen on having it restored back to its former beauty as a period feature.
Stone is difficult enough to restore with the conventional chemical approach as it is so instead we opted to use a full diamond pad cutting system which is designed to cut back the screed to the stone underneath. This involves applying a very coarse 50 grit Diamond pad, followed by a 100 Grit and so on to the 200 grit. As you can see from the results this not only removed the Screed/Self levelling compound but also revealed the true red colour of the Sandstone.
Sealing a Sandstone Tiled Floor
We had to leave to the stone to dry out for several days as the diamond system uses a lot of water to lubricate the process which can saturate the stone making it take longer to dry out. Once fully dry we applied three coats of Tile Doctor Colour Grow for a nice even matt finish, colour grow also accentuates the deep colours in the natural stone.
I think you will agree; this was quite the transformation.
We received a request to take a look at these Sandstone flagstones at a house in Grange over Sands, the request implied all was required was a usual clean and Re-seal however once we took a look at the floor it was obvious a lot more was involved and the floor was in need of restoration work including Sandstone floor restoration including grout replacement and paint stripping.
To get the floor clean I decided to apply a strong dilution of Tile Doctor Remove and Go combined 50/50 with NanoTech UltraClean to give it more cleaning power. We normally use Remove and Go to remove old sealers but it works just as well softening up paint splashes so they can be removed. It was left to soak into on the flagstones for a good twenty minutes before being scrubbed into the tiles with a rotary machine fitted with a scrubbing pad. The resultant slurry was removed using a wet vacuum and the floor washed down so we could get an idea of the improvement in the floor. There were quite a few stubborn areas so the whole process was re-done until I was happy the floor was as good as I could get it and at that point rinsed the whole floor down again with clean water to neutralise the floor before dealing with the missing and loose grout which was replaced with a close a colour match as possible before leaving for the evening so the floor could dry overnight.
Sealing a Sandstone Tiled Floor
We came back the next day and tested the floor with a damp meter in a few different locations to make sure no dampness remained in the stone. The sandstone was dry so we proceeded to seal the floor with Tile Doctor Colour Grow which is an impregnating sealer that occupies the pores in the stone preventing contaminates becoming ingrained there and also as its name suggests brings out the colours in the natural stone.
Old Sandstone floor Cleaned and Sealed in South Lakes