Hobbies Cars & Motorcycles How to Repair Your Car's Plastic Bumper Share PINTEREST Email Print deepblue4you / Getty Images Cars & Motorcycles Cars How Tos Basics Reviews Classic Cars Corvettes Mustangs Tires & Wheels Motorcycles Used Cars Trucks ATVs & Off Road Public Transportation By Matthew Wright Matthew Wright Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. Learn about our Editorial Process Updated on 09/24/18 Even a minor accident can result in a damaged bumper. The professionals use expensive epoxies, heat, plastic welding, and other techniques to repair bumpers. That's costly, but probably worth it if you own an expensive vehicle. But if you aren't obsessed with perfection, or the value of your vehicle doesn't support spending that much money on the repair, you can do it yourself for less than $100. If you've just got a chip in the paint, that repair is even easier. 01 of 04 Clean the Bumper Adam Wright The first step in repairing a plastic bumper is to clean the wound, so to speak. Anything that's breaking the natural contour of the bumper needs to be cut off; those pieces sticking out will prevent you from creating a smooth surface with the patch. Large pieces can be cut off with a razor blade. Any small burrs or sections can be sanded down with 80- or 100-grit sandpaper. Next, clean the back of the bumper as well as you can and scuff it with your sandpaper. 02 of 04 Reinforce the Repair Area Adam Wright You'll need to reinforce the area behind the holes before you add any filler to the front. To do this, cut a piece of auto-repair cloth or mesh about an inch larger than your hole on all sides. Soak the cloth with fiberglass-impregnated body filler and press it onto the back side of your damage holes. Allow at least three hours for the repair patch to set before proceeding to the next step. 03 of 04 Add the Filler Adam Wright Once the patch has set, you can start to add filler to the front. Follow the directions on the filler container to find out how many total layers you should apply. Spread a thin layer, allowing it to dry between applications. When you're finished, sand the area smooth. 04 of 04 Paint Your Bumper Gregor Bistor/E+/Getty Images Before you paint the repaired bumper, you'll need to make sure you've got a proper match. You can do this at your auto parts store or online as long as you know the make and model of your vehicle. Touch-up paint is sometimes sold in a spray can, which makes applying it easy. But for whole-bumper repaint jobs, you may be better off renting a professional paint sprayer. Make sure you're working in a well-ventilated area and wearing safety gear like a respirator or mask, goggles, and gloves. Now that you've filled and sanded your bumper, it's time to spray the color on. Carefully mask the area around your repair and spray the smooth repair. Remember, many light coats are better than fewer heavy coats. If your car uses a clearcoat paint, add the clearcoat after your paint has been applied and had time to dry.