Some methods for repairing a scratched car window include using nail polish or metal polish. Both of these methods require a light hand as well as cleaning and drying the glass before attempting a repair.
To repair a scratched car window with nail polish, apply a single light coat of nail polish over the scratch. The nail polish must fill the scratch without excess polish. Once the polish dries, clear excess polish with nail polish remover.
When using metal polish to repair a scratch, dabs a small amount of metal polish into the scratch. It is important to avoid other areas of the glass as metal polish can create further scratches.