A cracked windshield is a frustrating and potentially dangerous problem. Ignoring it can lead to further damage, reduced visibility, and even a complete windshield failure. Fortunately, there are steps you can take to prevent that crack from spreading and buying you time until you can get it professionally repaired or replaced. This guide will cover effective methods and answer common questions surrounding windshield crack prevention.
What Causes Windshield Cracks to Spread?
Before we delve into prevention, understanding why cracks spread is crucial. Several factors contribute:
- Temperature Fluctuations: Extreme temperature changes, especially rapid shifts between hot and cold, can cause the glass to expand and contract, stressing existing cracks and causing them to grow.
- Road Vibrations: Driving on rough roads subjects the windshield to constant vibrations, further weakening the crack and potentially propagating it.
- Pressure Changes: Sudden pressure changes, such as those experienced during rapid acceleration or deceleration, can also exacerbate the crack.
- Neglect: Leaving a small chip or crack unattended allows it to weaken and spread more easily over time.
How to Prevent a Windshield Crack From Spreading?
Here's a breakdown of effective strategies to prevent further damage to your cracked windshield:
1. Clean the Crack Immediately:
Clean the crack thoroughly with a clean, soft cloth and isopropyl alcohol to remove any dirt or debris that might further damage the glass. This step prevents contaminants from getting embedded in the crack, which can act as stress points and contribute to spreading.
2. Apply a Crack Repair Kit (Temporary Solution):
Commercial windshield crack repair kits are readily available and can temporarily stabilize a crack. These kits usually involve injecting a resin into the crack to fill it and prevent further propagation. Remember, this is a temporary fix; it will not restore the windshield's structural integrity to its original state. Professional repair is still necessary.
3. Prevent Further Impact:
Avoid driving on rough roads if possible, and be extra cautious when driving on gravel or dirt roads where small stones could chip or further damage the already compromised glass.
4. Avoid Extreme Temperature Changes:
While this is not always possible, try to minimize exposure to extreme temperature fluctuations. Parking your vehicle in shaded areas during the hottest parts of the day and avoiding sudden blasts of hot or cold air from your vehicle's climate control system can help.
5. Use a Windshield Protection Film:
Consider installing a clear protective film over your windshield. While it won't fix the existing crack, it can help to prevent further chipping and cracking from small debris.
What is the best way to prevent a windshield crack from spreading?
The best way combines prevention and quick action. Regular inspections for even tiny chips are key. Addressing any damage immediately with a crack repair kit and avoiding factors that stress the glass (like rough roads and extreme temperature changes) significantly improves the chances of keeping the crack from spreading. Professional repair should always be scheduled as soon as possible.
Can I drive with a cracked windshield?
Driving with a severely cracked windshield is generally illegal and unsafe. The extent of damage determines the legality. A small crack might be permissible in some areas, but a large crack obstructing your vision or compromising structural integrity is almost always illegal. It's best to check your local regulations and prioritize safety.
How much does it cost to repair a cracked windshield?
The cost of repair varies greatly depending on the size, location, and type of damage. Small chips are usually cheaper to repair than large cracks. Getting multiple quotes from different repair shops is recommended to ensure you're getting a fair price. Insurance often covers windshield repair or replacement, depending on your policy.
When should I replace a cracked windshield instead of repairing it?
Replacement is necessary when the crack is:
- Too large: If the crack is long, deeply etched, or extends into the driver's field of vision.
- Located in a critical area: Cracks near the edges, close to the driver's view, or compromising the windshield's structural integrity require replacement.
- Beyond repair: If the damage is extensive, repair attempts may be unsuccessful or weaken the glass further.
Remember, prioritizing safety is key. A cracked windshield poses a safety risk, and it's best to address the issue promptly to avoid accidents and legal complications. Consult with a professional auto glass repair specialist to determine the best course of action for your specific situation.
