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How to Stop a Windshield Crack from Spreading

by Landon Booth
August 19, 2025
in Tips
Shutterstock

All sorts of things can cause windshield cracks. A rock could fly up and hit your windshield when you are driving, for example. If your windshield has a crack, you could be worried about the problem getting worse. These are a few tips that can help you stop your windshield crack from spreading and getting worse.

Why You Should Take Your Cracked Windshield Seriously

If you are a vehicle owner who is dealing with a cracked windshield, you could be wondering why the problem deserves your attention. Some people ignore their cracked windshields, which is not a good strategy. These are a few reasons why you should take the problem seriously and do what you can to repair it as soon as possible:

  • You could be cited. Depending on where you live and drive, where the crack is located on your windshield and how serious the crack is, there is a chance that you could receive a traffic citation for continuing to drive a car with a damaged windshield.
  • Your car will not look as attractive. If your car has a chipped windshield, your vehicle is not going to look its best.
  • You and other drivers could be put at risk. Your visibility can be impacted if your windshield is cracked. If your windshield is already damaged, you have to worry about the windshield suddenly cracking or shattering and making it impossible for you to see while you are driving. This could obviously put you and others on the road in danger.

Apply Nail Polish or Super Glue

After cleaning and drying your windshield crack thoroughly, take the time to apply a little bit of clear nail polish or super glue to the crack. You should only use a little bit; otherwise, it could impact your visibility. After the glue or nail polish has dried, you can add a small piece of clear packing tape on top to help prevent the glue or nail polish from getting dirty. This is only a temporary fix, but it could prevent your windshield crack from getting worse.

Use a Windshield Repair Kit

If you stop by an auto parts store, you can look for a windshield repair kit. This does take a little more work than simply applying a little bit of glue or nail polish, but it can work more effectively over the long term. Basically, you will need to drill a small hole into the top layer of the glass. Then, you can force the special resin that comes in your windshield repair kit into the hole that you have drilled. This will help protect your windshield and prevent the crack from getting worse.

Avoid Exposing Your Car to Sudden Temperature Changes

If you expose your car to sudden temperature changes, then you have to worry about your windshield crack gets worse. Your windshield could also shatter in this situation. Be careful about leaving your car parked in the sun or otherwise leaving it exposed to major temperature changes. Windshield cracks are common problems for drivers to deal with. If you find yourself dealing with this situation yourself, keep the advice above in mind. Also, make sure that you take your car to a windshield repair service as soon as possible so that you can have your windshield properly repaired or replaced.

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