There are a number of commercial products that will remove decals from cars. Begin with a gentle remover and work your way up, if necessary. Some things you may even have around your home. Try liquid fabric softener mixed 50/50 with water, mineral oil, or acetone fingernail polish remover. Products such as Goo Gone or even auto bug and tar remover are also useful for removing decals.
Generally, any of these will work without damaging paint, but always test in an inconspicuous area first. Be sure and thoroughly wash the area with mild soap and water when you are done. Don't allow the product to sit for an extended period of time. To help the removers do the job, fill a spray bottle with hot water and soak the decal thoroughly before applying a remover. Use the edge of your fingernails to very gently and carefully lift away the edges of the decal and keep moving toward the center as the decal loosens. Be careful not to scratch your car. Avoid using anything to scrape the decal off.
Professionals use eraser wheels to remove graphics, double-sided tape behind emblems, and other adhesives from cars without damaging the paint. You can buy an eraser wheel at most auto parts stores and at some body shops. Use a high-quality wheel designed for removing decals. Start at the edge of the decal, never staying in one spot for very long. Then move toward the center of the decal as the edges are lifted away.
Heat is an effective way to remove some decals without damaging the paint. Although it won't remove on all decals. A heat gun is ideal, but if you don't have one available, a hair dryer on high setting will work well. As with the other methods, begin at the edges of the decal, lifting them away from the car as the adhesive releases, and work toward the center. You may need to use one of the chemicals listed above to remove any residue left behind from removal of the decal.
