Damaged Windshields are Not Safe
If the glass has cracks, chips, or missing pieces, then the odds are against you that the entire windshield will stay intact in a collision. Your best bet is to fix the windshield imperfections as they happen, and restore windshield's stability.25 Sept 2017
Click to see full answer
How long does it take for a crack in a windshield to spread?Changes in Temperature
When this happens, your windshield's structure tends to shift, thus weakening the corner of each crack or chip. In one day, these cracks will start spreading on a microscopic level. Within a few days, you will see marked differences in the crack with the naked eye.12 Oct 2021
How long can a windshield crack be?
Cracks between 6 inches and a foot in length have the potential to be repaired. Cracks longer than a foot necessitate a full replacement. How Long is Too Long to Drive with a Cracked Windshield? There is no set amount of time to safely drive with a cracked windshield.23 Jul 2018
Can you drive around with a cracked windshield?
It's generally not dangerous to drive with a small crack in the windshield, but damaged glass should be repaired or replaced as soon as possible for two important reasons: Windshields weakened by damage provide less protection. Cracked windshields decrease visibility.23 Apr 2018
Can a cracked windshield break while driving?
Unfortunately, since there is a growing crack, your windshield could break while driving. The crack can continue to spread due to moisture, temperature fluctuations, and further impact. The good news is that windshields are laminated on both sides so yours won't shatter into the car.1 Feb 2022
Another important factor is the location of the crack. If the crack hinders the view as you drive the car, you should have it repaired right away. However, if the crack is small and on the passenger side, you could possibly drive for hundreds of miles without any issue.22 Mar 2018
Spread Nail Polish on the Crack
Like superglue, clear nail polish can serve as a temporary fix to stop a windshield crack from spreading while you're on the go. And, like superglue, nail polish can be highly difficult to remove once it's been applied.20 Sept 2021
You should avoid driving your vehicle if it has a cracked windscreen, as it could increase the chances of a car accident.19 Oct 2020
Though not an immediate danger, if the crack is large, near or touching the edge of the windshield, the glass may have to be replaced and driving the car is not recommended. Driving with a broken windshield should also be avoided whenever the damaged glass impairs the vision of the driver.23 Apr 2018
Whether it's two or 10 inches long, or somewhere in between, a crack has always been a primary reason to get a windshield replaced. Cracks, both short and long, can be repaired by filling the damage with a special resin.
While a windshield usually won't fall in on itself or burst like a side window from actors like temperature or pressure, a crack can expand, splinter out, and shatter (typically) the outer layer of glass.
How to Stop a Crack in the Windshield
- Apply Superglue or Clear Nail Polish. Before you attempt to fill the crack, clean the windshield with auto glass cleaner and paper towels.
- Use a Windshield Repair Kit.
- Avoid Sudden Temperature Changes.
- Schedule Windshield Repair or Replacement.
How to Hide a Crack in a Windshield
- Pour 1/4 cup of water to the mixing bowl. Then add a 1/2 teaspoon each of salt, bug repellent and rubbing alcohol.
- Dip the rag in the solution and rub it into the crack. Keep dipping the rag in the solution and rubbing it into the crack until all the solution is gone.
It is best to replace the windshield when the damage is larger than three inches, and there are more than three cracks or chips. Also, if the break is located at the edge of the windshield, jeopardizing its integrity and has “spider-webbed” quickly, then it is time to go to the repair shop.31 May 2019
Generally speaking, chips smaller than a quarter, and cracks up to three inches long can be easily repaired.
There is no set amount of time to safely drive with a cracked windshield. In some cases, the crack is diminutive and unlikely to spread, making it possible to drive days, weeks or even months without additional damage. However, even slight cracking makes windshields brittle.23 Jul 2018