How To Stop Windshield Cracking Further. Make sure you park in the shade, and apply any of the above methods to keep water from entering the crack. How to stop a crack in the windshield.
There are, however, some steps you can take to give your windshield the best chance of lasting the life of your car. It’s impossible to completely prevent accidental damage. Using the brush that came with the polish, work it into the crack, both on the inside and outside.
While not a permanent fix, this will buy some time to shop around for repair jobs and will stop further expansion of the crack.
You must replace the entire pane of glass. Most importantly, you have to clean the damaged area of your windshield before adding the glue. And remember to warm up or cool down your car slowly. The same rule applies for winter and your car’s heater.