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Marble Tile Cleaning and Polishing
For best results on hard stone surfaces such as Marble we burnish the floor using a set of diamond encrusted polishing pads. You start with a coarse pad which applied with a little water to remove surface dirt and sealers etc. before moving through a set of finer polishing pads until you reach a high shine glossy finish. Half way through the burnishing process we stopped to apply a dilution of Tile Doctor Pro-Clean along the grout lines and give them a scrub with stiff hand brushes repeating the process in stubborn areas.
After the treatment the floor was washed do to remove any soiled solution before being buffed with a white buffing pad. Any trace of its previous condition was now gone and the floor was uniform in appearance, it took much of the day to do the polishing and a set of four burnishing pads to acquire the right lustre.
Source: Expert Marble floor tile maintenance site