Hobbies Cars & Motorcycles How to Use a Windshield Repair Kit A quick car fix on your own Share PINTEREST Email Print Lokibaho/Getty Images Cars & Motorcycles Cars How Tos Buying & Selling Basics Reviews Tools & Products Classic Cars Exotic Cars Corvettes Mustangs Tires & Wheels Motorcycles Used Cars SUVs Trucks ATVs & Off Road Public Transportation By 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. our editorial process Matthew Wright Updated October 11, 2017 You may have seen windshield repair kits in stores that claim to repair rock chips and cracks in about 15 minutes, but do any of them really work? Is it possible to repair a windshield yourself or do you have to use a professional for the job? This review of a popular windshield repair kit gives you the lowdown on the DIY project. Using a DIY Kit to Repair Your Windshield The windshield repair kit seemed pretty comprehensive. There were very specific tools to use for each step, though many were made cheaply out of plastic. Unlike some other kits, this one had all of the components necessary to do the job including a razor blade. We evaluated it on a round chip in a windshield that was caused by gravel. The instructions were pretty good, too, as they explained each tool and how to use it. The whole process took about 10 minutes total. Fix Your Own Windshield Chip To begin, the windshield needed to be cleaned. To do this, just use the razor blade and pick out any loose pieces of glass, as loose particles could impair the repair process. After dong that, you may want to apply glass cleaner to the surface and let it dry before applying the X-shaped suction cup apparatus. It has a center hole that needs to go directly on top of the impacted area. To check that it covers the chip completely, just look from inside the vehicle to make sure the center is properly aligned. Next, thread the repair tube into the center of the suction cup tool tightly by hand. Then pour in the windshield repair resin through the repair tube. Following that, push in a plunger, being careful to remove any air bubbles that got into the threaded tube when you squirted the resin into it. Give that a minute to set, and then remove the suction cup tool so nothing is on the windshield. Place the clear finishing film over the area of the crack. You can gently rub the razor blade to smooth out the resin. Let it dry for as long as needed, as per the directions. If you want to tape the clear piece on to secure it, feel free to do so. Finally, peel away the clear plastic. When we did this to the vehicle being tested, the chip had vanished. In fact, the windshield was so clear that it was impossible to find the initial impact area. Overall, it was a success and the windshield repair kit worked well. As with any repair kit of this sort, it has limitations. You may not experience the same results, and results may vary depending on the windshield repair kit you use. You may have a more extensive abrasion that requires professional assistance. With patience and persistence, though, you can save a lot of money by repairing your own windshield. Ready to repair your own windshield? Use our step-by-step windshield repair guide to make the job easier!