This job required the cleaning of Marble Worktops in twelve toilets at a very nice office in the Abingdon Science Park. The building was occupied by a company called Sophos who you may have heard of and over a period of time the Marble had become stained through the build-up of Limescale from the water supply and the cleaning company servicing the office could not clean it off. I’ve seen a few horror stories of stone surfaces being damaged through the use of acidic Limescale removers so the cleaning company was quite right not to touch it.
Polishing Marble Worktops
To remove the Limescale it would be necessary to hone the Marble using a set of small six inch burnishing pads fitted to a handheld buffing machine. The process involves starting with the coarse 400grit pad with a little water which cuts through the Limescale and then moving on to the 800, 1500 and finishing with 3000 grit to hone the surface and build the polish backup. The water helps lubricate the activity and the surface needs to be rinsed down between each pad.
Sealing Marble Worktops
When the surface was dry I applied two coats of Tile Doctor Colour Grow which is a colour enhancing sealer which impregnates the pores of the stone to protect it, it also enhances the natural colours in the stone.
There were twelve of these to do so as you can imagine it took me a while to get round.
If you are experiencing a similar problem with highly polished Marble do get in touch as we can achieve a mirror finish.
Source: Limescale stained Marble bathroom worktops honed in Oxfordshire office