A scratched mirror isn't a pretty sight. This kind of imperfection can also mar your reflection, making it difficult to apply make-up or insert a contact lens correctly. While mirrors with very deep or large scratches are probably best left to a professional, it's not necessary to shell out the money for one to repair a small scratch or two. In fact, you can use a home remedy to remove a mirror scratch.
Pick Your Remedy
Many do-it-yourself types find that toothpaste can help minimise the appearance of a scratch on a mirror. However, it's important to use the paste variety and not the gel type because the former contains more abrasive agents. Rub a small amount of paste over the scratch with your finger for a few minutes, then go over the area again with a soft cloth using circular motions
Try using a paste made from equal amounts of dry mustard and white vinegar. Follow the same procedure as you would if you were using toothpaste.
Repair your scratched mirror with powdered cerium oxide, an earth metal with small particle size. This is the same material used by jewellers, stonemasons and lapidaries to polish marble and precious gemstones. Commonly referred to in industry as optician's rouge, this substance is also used to polish glass. To use cerium oxide as a home remedy to remove a mirror scratch, apply a paste of cerium oxide and water and buff it into the scratch using a drill with a buffer attachment. Note that glass cerium oxide glass polishing kits, many of which include a polishing tool, are available in many hardware and auto supply stores.
Get at the scratch with sandpaper. The same sandpaper you might use to refinish wood is coated with silicon carbide or aluminum oxide, materials that are also used in the glass polishing industry. Start this method by misting the mirror with water, then gently rub the sandpaper in circular motions onto the offending scratch. Then wipe the area with a soft, dry cloth.
Reach for an emery board if you don't have any sandpaper on hand. Disposable cardboard nail files are coated with powdered emery, an abrasive mineral known as black sand. Use this home remedy just as you would sandpaper.
Consider reframing your mirror. This is a particularly resourceful way to solve the problem of a scratched mirror, provided the scratch is located in an area that will be hidden by the frame, like an edge or corner.