How to Repair a Cracked Windshield?
2 Answers
Here are the methods to repair a cracked windshield: 1. Clean the area to be repaired with alcohol and glass cleaner, then blow out all small glass fragments to smooth the damaged area; 2. Use the positioning sticker from the repair kit, position it correctly, and then drip in the glass repair solution, being careful not to squeeze too much; 3. Prepare the syringe, pull it to the top, then block the opening at the bottom of the syringe and hold for about 10 minutes until all bubbles escape. This ensures no air remains in the damaged area; 4. Reinsert the syringe into the bracket, this time pressing it down to push the repair solution into the cracked area. Hold for 15 minutes to allow the solution to penetrate the crack; 5. After 15 minutes, replace with the curing film and use a blade to squeeze out any bubbles. Note that the resin hardens under UV sunlight, not heat. Finally, park the car in the sun for 15 minutes; 6. Finally, remove the curing film and use a blade to scrape off any remaining adhesive.
There's a crack on my car windshield, and I've handled it myself several times. I find DIY repair kits quite effective. First, clean the glass surface thoroughly, using a small brush or compressed air to remove all dust and debris from the crack, ensuring no dirt affects the adhesion. Then, purchase a resin repair kit, which usually includes a syringe and a UV lamp. Slowly inject the resin into the crack, allowing it to seep in and fill all the gaps. After injecting the resin, use the UV lamp to cure it for about ten minutes until it hardens and strengthens. The entire process takes around 20 minutes and costs just a few dozen yuan. However, remember this method is only suitable for small cracks, such as those under 6 cm. After repair, the strength recovers about 80%, making it suitable for daily use and preventing further expansion. Always maintain a safe driving distance to avoid small stones hitting the windshield.
