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How To Stop A Windshield Crack From Spreading?

Posted by Mariios on February 27, 2024

A cracked windshield is not just a nuisance; it can also be a safety hazard, impairing your visibility and compromising the structural integrity of your vehicle. To stop a windshield crack from spreading, you can apply a clear nail polish or windshield repair kit to seal the crack temporarily until you can get it professionally repaired. You can also apply super glue on the length of the crack to ensure the crack doesn’t spread. Always avoid extreme temperatures and drive carefully to minimize the risk of exacerbating the crack. In this blog, we’ll explore some of the effective DIY windshield crack stoppage techniques.

5 Tips For Windshield Crack Stoppage

If you want to stop your windshield from getting worse and stay safe while driving, follow these important tips. 

1. Seal the Crack with Superglue

One of the quickest and simplest ways to prevent a windshield crack from spreading is by sealing it with super glue. Start by cleaning the area around the crack with a glass cleaner and a soft cloth. Then, apply a small amount of superglue directly onto the crack, making sure to cover the entire length of the damage. It forms a strong bond that can help hold the crack together and prevent it from spreading further. Fix hairline crack in windshield using this method as a temporary solution until you can get professional repair or replacement from Blue Diamond Auto Glass.

2. Spread Nail Polish on the Crack

Another household item that can be used for windshield crack stoppage is clear nail polish. Similar to superglue, nail polish forms a protective barrier over the crack, preventing dirt and moisture from getting inside and worsening the damage. Begin by cleaning the area around the crack with glass cleaner and allowing it to dry completely. Then, carefully apply a layer of clear nail polish over the crack and then let the nail polish dry thoroughly before driving your vehicle.

3. Avoid Exposing the Glass to Extreme Temperatures

To minimize the risk of further damage, try to avoid exposing your vehicle to extreme temperatures, such as parking in direct sunlight on hot days or leaving it out in the cold overnight. If possible, park your car in a garage or shaded area to shield it from temperature extremes.

4. Drive Your Car Carefully

To prevent a windshield crack from spreading, drive your car carefully and avoid rough terrain or sudden impacts. Sharp turns, potholes, and speed bumps can all put additional stress on the glass, causing the crack to widen. Whenever possible, try to take it easy on the road and avoid any activities that could potentially damage your windshield further. 

5. Contact a Mobile Auto Glass Repair Specialist

While DIY windshield crack methods can provide temporary relief, they are not a permanent solution to a cracked windshield. To ensure the safety and integrity of your vehicle, it’s essential to seek professionals when it comes to getting car windshield replacement or repair services. By contacting a leading mobile auto glass repair specialist like Blue Diamond Auto Glass, you can get expert assistance without having to leave the comfort of your home or workplace.

How can I stop a windshield crack from spreading? 

You can stop a windshield crack from spreading by applying clear nail polish or a windshield repair kit to fill in the crack. Avoid driving over rough terrain or slamming doors, as this can worsen the crack. 

What home remedy can I use to fix a cracked windshield? 

One home remedy to fix a cracked windshield is using clear nail polish or super glue to fill in the crack temporarily. However, for a more permanent solution, it’s best to use a windshield repair kit or seek professional help. 

Can you seal a windshield crack yourself? 

Yes, you can seal a windshield crack yourself using a windshield repair kit available at most auto parts stores. These kits typically include resin and other tools needed to fill in the crack and prevent it from spreading further. 

What can I put on my windshield to keep it from cracking more? 

For windshield crack stoppage, you can apply clear nail polish or use a windshield repair kit to fill in the crack. Additionally, avoid exposing your windshield to extreme temperature changes and refrain from slamming doors or driving on rough terrain.


While a cracked windshield may seem like a daunting problem, there are several DIY methods you can try for windshield crack stoppage. From sealing the crack with super glue to contacting a mobile auto glass repair specialist, the above-discussed key techniques can help buy you time until you can arrange for professional repair. Call us at Blue Diamond Auto Glass for expert advice and assistance in determining the best solution for your cracked windshield.

February 27, 2024
Written by
Blue Diamond Auto Glass
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