Polishing discs for granite are specialized abrasive tools designed to handle the unique properties of granite—an igneous rock known for its hardness, durability, and distinctive mineral grain patterns. These discs are engineered to smooth rough granite surfaces, enhance their natural color, and achieve a high-gloss finish while preserving the stone’s structural integrity. The key to their effectiveness lies in the use of diamond abrasive particles, which are harder than granite’s primary minerals (quartz, feldspar, and mica), ensuring efficient material removal. The discs are available in a range of grit sizes, starting from coarse (50-100 grit) for leveling uneven surfaces or removing saw marks, progressing to medium (200-400 grit) for refining the texture, and finishing with fine (800-3000 grit) for achieving a mirror-like shine. The backing material is typically a rigid or semi-rigid resin matrix or a flexible foam pad, which allows the disc to conform to the granite’s surface without causing uneven abrasion. In stone fabrication, these discs are used on granite countertops, floor tiles, and decorative slabs, where a smooth finish not only enhances aesthetics but also simplifies cleaning by reducing porosity. They are compatible with wet polishing systems, where water is used as a lubricant to cool the disc, reduce dust (a health hazard with silica-rich granite), and carry away stone particles, preventing clogging. This wet process also helps bring out granite’s natural colors by temporarily darkening the stone, allowing fabricators to assess the final appearance. For professionals, the progression through grit sizes is critical: skipping a grit can leave visible scratches that are difficult to remove in later stages. Polishing discs for granite may also incorporate resin bonding systems that reduce heat buildup, protecting the stone from thermal damage that could cause cracking or discoloration. Whether used with handheld polishers or large-scale automated machines, these discs ensure that granite’s inherent beauty is maximized, making them indispensable in the stone processing industry.