Can the Car Windshield Be Repaired?
2 Answers
For small dents on the car windshield, specialized glass repair agents can be used for filling and repair. However, if the crack is large or long, repair is not recommended as the effect will be limited, and it is advisable to replace the glass directly. Steps for repairing small dents: 1. Clean the area to be repaired with alcohol and glass cleaner, and after drying, remove any possible impurities in the crack; 2. Attach an observation board to the inside of the windshield for clearer visibility during repair; 3. Align the center point of the suction cup base with the position to be repaired and secure the four corners; 4. Fix the pressurizing device to the suction cup base, ensuring correct positioning, then unscrew the upper part of the pressurizing rod; 5. Pour the repair liquid into the opening at the top of the pressurizing device and screw the pressurizing rod back into the base; 6. Wait for the repair liquid to penetrate and solidify (about 10 minutes), then unscrew the pressurizing rod, wait for one minute, and screw it back to remove air inside the crack; 7. Remove the repair device and scrape off any residual repair liquid with a blade.
I've experienced situations where small stones hit my windshield and caused cracks while driving. At that time, worried that I might need to replace the entire windshield, I specifically visited several repair shops for consultation. The technicians all said that as long as the crack isn't too large—for example, within a few centimeters in length and hasn't spread to the edges—it can be repaired with professional adhesive. The repair process is quite quick: first, they use tools to clean out the debris, then inject resin to fill the crack, and finally cure it with ultraviolet light. The whole process takes about half an hour. After the repair, visibility isn't affected, and it's much cheaper than replacing the windshield. However, if the crack is too large or in a bad position and can't be repaired, then a full replacement is indeed necessary. So don't delay—address any small damages as soon as you notice them to prevent them from becoming bigger and more troublesome.