There are a few cleaning materials that should be avoided when it comes to black granite surfaces. These include:
1. Acidic cleaners: Avoid using acidic cleaning products such as vinegar, lemon juice, or any cleaners containing ammonia. These can cause etching and discoloration on the granite surface.
2. Abrasive cleaners or scrub brushes: Steer clear of using abrasive cleaners or scrub brushes on black granite, as they can cause scratching and damage the surface. This includes powdered cleaners, steel wool, or any scrubbing pads with a rough texture.
3. Bleach or bleach-based cleaners: Bleach can weaken the sealant on the granite and cause damage or discoloration. It is best to avoid using bleach or bleach-based cleaners on black granite surfaces.
4. Oil-based or wax-based cleaners: Oil-based or wax-based cleaners can leave behind a filmy residue on the granite surface, making it dull and attracting more dirt and grime.
5. Harsh chemicals: Avoid using any harsh chemicals or strong solvents on black granite, as they can strip away the sealant and potentially cause permanent damage.
It is advisable to use pH-neutral cleaners specifically formulated for granite surfaces or a mild dish soap with warm water for regular cleaning of black granite countertops or floors. Additionally, always test any new cleaning product or method on a small, inconspicuous area of the granite before applying it to the entire surface.