· you should avoid using magic erasers on delicate countertops like natural stone, marble, or granite. But before you get cleaning, here are 10 things you should avoid when using a magic eraser. · while it certainly has its place in your cleaning routine, there are items and surfaces with which a magic eraser can do more harm than good. · some surfaces you should not use a magic eraser on are phone screens, nonstick cookware, stone countertops, stainless steel, and high-gloss or matte finishes. Using a magic eraser on painted walls can strip away the paint, leaving you with a patchy mess. · we spoke to carroll and other cleaning experts to round up things you should never clean with a magic eraser (or other brands of melamine erasers ). These surfaces often have special coatings to protect them from moisture and stains. Never use a magic eraser on screens or delicate electronic devices, as it can cause irreparable damage. Keep this as your handy guide for what to avoid cleaning with a magic eraser. · magic erasers can sometimes work too well, scrubbing off entire finishes before you know it. Consider it a good rule of thumb to avoid using your magic eraser for messes on brushed, glossy, satin, or dark surfaces. Magic erasers are too abrasive for wood surfaces and can cause scratches and damage.