How to Stop Windshield Crack from Spreading: Expert Tips and Tricks


Having a cracked windshield can be frustrating and potentially dangerous. If left untreated, even a small crack can spread and compromise the structural integrity of the glass. But fear not! In this comprehensive guide, we’ll share expert tips and tricks on how to stop a windshield crack from spreading. Whether it’s a minor chip or a long crack, these techniques will help you protect your windshield and save money on costly replacements. Let’s dive in!

How to Stop Windshield Crack from Spreading

Understanding the Anatomy of a Windshield Crack

Before we delve into the solutions, let’s understand the anatomy of a windshield crack. Windshields are made of laminated glass, consisting of two layers of glass with a layer of vinyl in between. When a crack occurs, it weakens the structural integrity of the glass, and external factors like temperature changes and road vibrations can cause it to spread.

Identifying the Type of Crack

Not all windshield cracks are the same, and each requires a specific approach to prevent spreading. Some common types of cracks include:

  1. Bullseye Crack: Circular damage with a central point of impact.
  2. Star Crack: Cracks that spread outward from a central impact point.
  3. Half-Moon Crack: Semi-circular damage caused by a rounded object.
  4. Long Crack: A crack that extends across the windshield in a straight line.

Identifying the type of crack is crucial in determining the most suitable solution.

Step-by-Step Guide to Stop Windshield Cracks

Let’s walk through a step-by-step guide to stopping windshield cracks from spreading:

1. Assess the Crack Size

The first step is to measure the crack size. If the crack is smaller than a dollar bill (around 6 inches), it can typically be repaired. Larger cracks may require professional assistance.

2. Temporarily Cover the Crack

While waiting for repairs, it’s essential to prevent debris from entering the crack. Cover it with clear tape to provide a temporary barrier.

3. Avoid Extreme Temperatures

Drastic temperature changes can cause the crack to spread. Avoid exposing your car to direct sunlight or using hot water to defrost the windshield in cold weather.

4. Park in the Shade

Whenever possible, park your car in the shade to protect the windshield from heat and minimize the risk of further spreading.

5. Use Windshield Repair Kits

For small cracks, you can use a windshield repair kit available at most auto parts stores. Follow the instructions carefully to fill the crack with resin.

6. DIY Temporary Windshield Crack Filler

A temporary filler can be made by mixing one part water with two parts bug repellent containing DEET. Apply this mixture to the crack until you can get it professionally repaired.

7. Seek Professional Repairs

For larger cracks or if the DIY methods didn’t work, consult a professional windshield repair service to prevent further spreading and ensure a lasting fix.

windshield cracks
windshield cracks

LSI Keyword: “Windshield Repair Kits”

Windshield repair kits are a cost-effective and convenient way to address minor cracks before they spread. Most kits come with detailed instructions, making it easy for anyone to use.

How to Stop Windshield Crack from Spreading: FAQs

Q: Can I use super glue to stop a windshield crack from spreading?

A: Using super glue is not recommended, as it may damage the windshield further and hinder professional repair efforts.

Q: Does car insurance cover windshield crack repairs?

A: In many cases, insurance policies cover windshield repairs. Check your policy details to see if you’re eligible.

Q: Can I use DIY repair methods for long cracks?

A: DIY methods are best suited for small cracks. For long cracks, professional intervention is necessary for an effective repair.

Q: Is a cracked windshield still safe to drive?

A: It’s risky to drive with a cracked windshield, as it compromises the structural integrity. Get it repaired as soon as possible.

Q: How long does it take to repair a windshield crack?

A: Repair times vary based on the type and size of the crack, but most repairs can be completed within an hour.

Q: Can windshield cracks be prevented?

A: While some cracks are unavoidable, regular maintenance and careful driving can reduce the risk of cracks.


A cracked windshield is not something to ignore. Taking immediate action and following the right steps can prevent the crack from spreading and ensure your safety on the road. Remember to identify the crack type, temporarily cover it, and avoid extreme temperatures windshield cracks. If the crack is minor, consider using a windshield repair kit or a DIY temporary filler. For extensive damage, consult a professional repair service. By following these expert tips and tricks, you can keep your windshield intact and avoid costly replacements.

maeveayla clarke

maeveayla clarke

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