How to Polish a Granite Slab
- 1). Spray liquid-based stone cleaner on the granite slab. Apply the stone cleaner liberally until the whole slab has been coated.
- 2). Scrub the soap into the granite slab with a cloth, and then rinse the soap with warm water. If the granite slab is very large, you can rinse the soap off with a regular hose.
- 3). Apply cream-based polish to the slab. You only need a moderate amount--about a quarter-sized drop per square foot.
- 4). Rub the polish into the stone using a clean cloth. The cream should disappear, and the granite slab's surface should sport a smooth luster.
Source...