Unlike other products, GS27 requires no strenuous buffing. It's not abrasive; it's a super fine microscopic crystallite that works its way into the scratch and polishes it away. Simply rub GS27 Scratch Remover into the scratch with a soft cloth; its special formula works almost instantly! No buffing, waxing, sanding, priming or painting! GS-27 Scratch Remover is so effective it will remove even ugly surface rust from chrome bumpers.