Whilst I was working on a stone floor at a property in Surbiton I was asked if I could do anything about the Marble Countertops in the Kitchen. The Marble had almost completely lost its shine and the owner was keen to have those re-polished to finish the kitchen renovation.
Fortunately, the methods and products we use to renovate stone floors can also be used to restore stone worktops as well. The only difference being we can’t use 17” floor buffers on worktops and countertops so for those we source smaller 6” pads.
The countertop had been worked on before by a different company previously but they had done a horrible job. Bu the time I was asked to look at it the Marble was very dull and covered in different marks, staining from acidic food and lots of etching.
Polishing a Marble Kitchen Countertop
First thing we did was to cover the kitchen in drop cloth and grey blankets to stop the slurry that’s generated during polishing dripping onto the stone floor below.
I then worked through a set of Diamond encrusted Burnishing pads fitted to a handheld DeWalt machine. The pads are applied to the Marble in sequence from 400 to 1500 grit using water for lubrication and then the waste is extracted after each pad using a small Numatic wet vacuum. I inspected the stone after the first pass through the pads and decided it could be better so started again working my way back up through the pads. You can see from the photographs there was a lot of Marble worktop to cover so this did take some time.
Sealing a Marble Countertop
I then left the stone to dry overnight and returned the following day to finish the job starting with a damp test on an electronic moisture meter which showed the Marble was dry.
To bring up a deep shine on the Marble the countertop was given a final polish with a very fine 3000 grit pad using a little water sprayed onto the surface. This final pad adds a nice deep shine to the stone and although it leaves the surface dry, I left an air blower running for a while to make sure.
Later that day I applied a few very fine coats of Tile Doctor X-Tra Seal and gave the surface another buff with a microfiber cloth. This sealer is an impregnator that soaks into the pores of the Marble preventing contaminants from becoming ingrained there and ensuring they remain on the surface where they can easily be cleaned away. Being an oil-based sealer, it really helped to bring out the beauty and colour of the Marble.
For the aftercare of stone worktops, we recommend the use of Stone Patina Spray which is a spray-and-buff cleaner that is designed to enhance the natural beauty and lustre of polished stone as it cleans.
Source: Marble Countertop Cleaning and Polishing in Surbiton South London
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