Granite is one of the hardest natural stones. Thus, it is a common building material for home counters, backsplashes and floors. Granite is simple to clean, but it can get dull over time. This is generally due to a buildup of hard water, soap scum and residue, as well as food residue. You can grind away this film with superfine steel wool. Never use coarser grade steel wool, as it will easily scratch the granite surface, which can be difficult and expensive to repair. Test your cleaning method on a small and hidden area of the granite first to make sure it will not damage it.
Wet the surface of the granite. Having a thin layer of water on the granite will help lubricate the surface so that the superfine steel wool does not damage it.
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Rub the superfine steel wool over the surface of the granite. Rub in a circular motion to help restore the shine and polish the granite.
Rub your hand over the surface of the granite. You will be able to feel the change between the cleaned and polished areas and the areas that still have grime on them. Rub over the areas with the grime until you have a uniform surface.
Wipe the area with a cloth to remove all of the water and residue.
Dry the granite with a clean cloth to prevent watermarks and streaks from developing.