What is the method for repairing rice grain-sized pits on the windshield?
2 Answers
The method for repairing rice grain-sized pits on the windshield is: 1. After drilling, clean out the glass debris inside the pit, otherwise it will affect the repair effect; 2. Use a repair tool to inject the repair fluid into the pit and apply pressure, allowing the repair fluid to gradually fill the pit; 3. Use a UV lamp to cure the repair fluid; 4. Remove the repair tool and scrape off any residual repair fluid on the surface with a blade to complete the repair. The principle of repairing rice grain-sized pits on the windshield is to fill the pit or crack with a repair fluid that has a refractive index similar to that of glass, which can cover the crack and prevent further cracking, thereby achieving the repair effect. Since the car's front windshield is made of double-layered glass, it is necessary to use a glass drill to penetrate the first layer of glass beforehand for better repair results. When drilling, control the force carefully to avoid enlarging the damaged area.
The method for repairing windshield pinhole pits is quite practical. As someone who frequently deals with such issues in auto repair work, I use a professional resin repair kit: first purchase a kit from an auto supply store, which includes a resin injector and UV lamp. During operation, first clean the small pit to ensure it's free of dust and oil, then use the injector to precisely drip resin into the pit to fill the gap. After covering with a transparent film, turn on the UV lamp for 10-15 minutes to cure the resin. Finally, scrape off the excess and polish smooth with a polishing cloth. The key is to act quickly, as small pits left unrepaired can easily expand into large cracks due to temperature changes or vibrations, which would be a much bigger problem. DIY saves a lot of money, costing only a few dozen yuan, but it's only suitable for damage smaller than a coin. Larger pits require professional repair shops, as they have vacuum equipment for a more thorough job. When driving, try to stay away from large vehicles to prevent stone chips, and keeping the windshield clean can help prevent such pits from occurring.
