The Hidden Dangers of Ignoring a Growing Windshield Crack

When you notice a crack on windshield getting bigger, it’s easy to put off fixing it, especially if you’re busy or on a tight budget. But doing so can pose serious safety concerns. Here’s a quick rundown of why you shouldn’t ignore it:

  • Visibility Issues: Even a small crack can obstruct your view, increasing the risk of accidents.
  • Structural Integrity: The windshield contributes to your car’s structural strength, especially in rollovers.
  • Safety Features: A compromised windshield can impact airbag deployment and other safety systems.

I’m Rich Main, owner of Vista Glass, with over two decades of experience in auto glass repair. I’ve seen how a small crack, if left unchecked, can grow into a big problem, jeopardizing your safety and vehicle’s structural integrity.

Infographic on dangers and solutions for windshield cracks - crack on windshield getting bigger infographic cause_effect_text

Why a Cracked Windshield is Dangerous

When you notice a crack on windshield getting bigger, it’s not just an eyesore; it’s a significant safety concern. Here’s why:

Structural Support

Your windshield is more than just a piece of glass. It’s a critical part of your car’s structural integrity. In the event of a rollover accident, the windshield provides up to 30% of the vehicle’s structural strength. A cracked windshield weakens this support, making it more likely for the roof to collapse during an accident.

Airbag Deployment

Airbags are designed to deploy against the windshield, using it as a backboard to protect you. If the windshield is cracked, it may not be able to withstand the force of the airbag deployment, leading to malfunction. This can result in the airbag not deploying correctly, putting you and your passengers at greater risk of injury.

Visibility Issues

A crack on the driver’s side can severely obstruct your vision. Even small cracks can cause light refraction, creating glare and making it hard to see clearly. This is especially dangerous at night or during adverse weather conditions. According to Vista Glass, impaired visibility can lead to accidents, as it hampers your ability to judge distances and recognize obstacles.

Distraction

A growing crack is not just a visual nuisance; it can be a constant distraction. Your eyes naturally gravitate towards it, taking your focus off the road. This split-second distraction can be dangerous, especially at high speeds or in heavy traffic.

Accident Risk

Ignoring a growing crack increases your overall accident risk. The crack can spread suddenly due to temperature changes, vibrations, or even minor impacts. A sudden expansion can cause the windshield to shatter, creating a hazardous situation for everyone in the vehicle.

Windshield Crack - crack on windshield getting bigger

Key Takeaways:

  • Structural Support: A cracked windshield weakens your car’s overall strength.
  • Airbag Deployment: Compromised windshields can cause airbags to malfunction.
  • Visibility Issues: Cracks obstruct your view and create glare.
  • Distraction: A growing crack can divert your attention from the road.
  • Accident Risk: Sudden crack expansion can lead to shattering and accidents.

Ignoring a windshield crack is not just inconvenient; it’s dangerous. For your safety and the safety of others on the road, it’s crucial to address any windshield damage promptly.

Next, let’s explore what causes windshield cracks to get bigger and how you can prevent them from spreading.

Causes of Windshield Cracks Getting Bigger

Windshield cracks might start small, but several factors can cause them to expand quickly. Understanding these causes can help you take preventive measures and avoid further damage.

Temperature Changes

Rapid changes in temperature are a major culprit. When it’s hot outside and you blast the air conditioner, or when it’s cold and you use the defroster, the glass expands and contracts. This stress can cause a small crack to grow rapidly.

Example: Parking your car in direct sunlight can heat the windshield, and then turning on the AC can cool it quickly, causing the crack to expand.

Vibrations

Driving on bumpy roads or even regular vibrations from the engine can cause a crack to spread. The constant jarring and shifting of the glass put stress on the crack, making it larger over time.

Tip: Avoid rough roads whenever possible to minimize vibrations.

Dirt Buildup

Dirt and debris can accumulate in the crack, causing it to expand. When dirt gets into the crack, it can prevent the glass from settling back into place and can even cause additional stress on the glass.

Pro Tip: Use rubbing alcohol to clean out dirt from the crack and apply clear tape to keep debris out.

Ultraviolet (UV) Rays

UV rays from the sun can heat the windshield and cause the crack to expand. Parking your car in direct sunlight can have a more substantial impact on cracks than driving because the wind cools the glass while you drive.

Sunshine can accelerate the expansion of a crack in glass by exciting the molecules that constitute the glass and heating the windshield. - crack on windshield getting bigger infographic infographic-line-5-steps-colors

Bumpy Roads

Driving on roads with potholes, bumps, or gravel can cause the windshield to shift and the crack to expand. Gravel hitting the windshield at high speeds can also create new chips, worsening the existing crack.

Advice: Try to avoid driving on poorly maintained roads. If unavoidable, drive slowly to minimize impact.

Ice Buildup

During winter, water can seep into the crack and freeze. As the ice expands, it can cause the crack to grow significantly. Removing ice and water from your windshield can help prevent this.

Tip: Use a scraper to remove ice and avoid using hot water, as the rapid temperature change can worsen the crack.

By understanding these factors, you can take steps to minimize the risk of a crack on windshield getting bigger. Next, we’ll discuss how to stop a windshield crack from spreading and the best methods to use.

How to Stop a Windshield Crack from Spreading

If you’ve noticed a crack on your windshield getting bigger, don’t panic. There are several methods to stop it from spreading until you can get professional help. Let’s explore some of the most effective ones.

Windshield Repair Kits

Windshield repair kits are a popular option for minor cracks. These kits typically include a resin that fills the crack and prevents it from expanding.

  1. Clean the Area: Use rubbing alcohol to remove dirt and debris.
  2. Apply the Resin: Follow the kit instructions to inject the resin into the crack.
  3. Cure the Resin: Use the provided curing strips and let it dry under direct sunlight or a UV lamp.

Note: While these kits can be effective, they are generally a temporary solution. A professional repair is recommended for long-term safety.

Superglue

Superglue can be a quick fix for a small crack.

  1. Clean the Crack: Use rubbing alcohol to clean the area.
  2. Apply Superglue: Use a dropper to apply a small amount of superglue into the crack.
  3. Spread Evenly: Use the tip of the dropper to spread the glue evenly.
  4. Remove Excess Glue: Gently wipe off any excess with an alcohol wipe or lint-free cloth.

Warning: Superglue is difficult to remove and may complicate professional repairs later.

Nail Polish

Clear nail polish can also serve as a temporary fix.

  1. Clean the Area: Ensure the crack is free from dirt.
  2. Apply Nail Polish: Use clear nail polish to fill the crack.
  3. Let it Dry: Allow it to dry completely.

Tip: This should be a last resort, as it can be hard to remove and may not be as effective as other methods.

Epoxy

Epoxy offers a stronger seal compared to superglue or nail polish.

  1. Clean the Crack: Use a glass cleaner or rubbing alcohol.
  2. Mix Epoxy: Follow the instructions to mix the epoxy.
  3. Fill the Crack: Use a syringe to inject the epoxy into the crack.
  4. Cure and Scrape: Let it cure for 24-48 hours, then scrape off any excess.

Pro Tip: Epoxy provides a strong, transparent seal, making it one of the best temporary fixes.

Sodium Silicate

Sodium silicate, also known as liquid glass, can be used to fill cracks.

  1. Clean the Area: Remove any dirt or debris.
  2. Apply Sodium Silicate: Pour it into the crack.
  3. Let it Dry: Allow it to dry completely.

Advantage: It lasts longer than other temporary fixes and is similar to glass in its properties.

Cerium Oxide

Cerium oxide is another effective method to stop a crack from spreading.

  1. Prepare the Paste: Mix cerium oxide with water to form a paste.
  2. Buff the Crack: Use an electric polisher with a pad to buff the crack at 2500 RPM.
  3. Clean Up: Use warm water and ammonia to remove any residue.

Safety Note: Wear goggles and a mask during this process to protect yourself from dust.

Clear Tape

Clear packing tape can be a quick and easy temporary fix.

  1. Clean the Area: Ensure the crack is free from dirt.
  2. Apply Tape: Place clear tape over the crack to keep out debris and moisture.

Reminder: This is a very temporary fix and should only be used until you can get a professional repair.

By using these methods, you can temporarily stop a crack on windshield getting bigger. However, these are not permanent solutions. For the best results, seek professional help as soon as possible.

Next, we’ll discuss preventive measures to avoid windshield cracks in the first place.

Preventive Measures to Avoid Windshield Cracks

Preventing windshield cracks is easier than dealing with them. Here are some simple, yet effective measures to help you avoid a crack on windshield getting bigger or even forming in the first place.

Avoid Temperature Extremes

Windshields are sensitive to sudden temperature changes.

Tip: Avoid blasting your air conditioner on a hot day or turning the defroster on full blast in the winter. Gradually adjust the temperature to prevent stress on the glass.

Cautious Driving

Driving cautiously can significantly reduce the risk of windshield damage.

Tip: Maintain a safe distance from the vehicle in front of you, especially on gravel roads. This helps avoid debris hitting your windshield.

Avoid Bumpy Roads

Potholes and uneven roads can cause vibrations that worsen existing cracks or create new ones.

Tip: Whenever possible, choose smoother routes. If you must drive on a bumpy road, reduce your speed to minimize the impact.

Park in the Shade

Direct sunlight can heat the edges of the windshield, causing it to expand faster than the center, which might lead to cracks.

Tip: Park your car in the shade or use a windshield sunshade to keep the temperature more consistent.

Remove Ice and Water

Ice can expand and worsen existing cracks, while water can seep into cracks and freeze, making them larger.

Tip: Use a plastic scraper to remove ice and avoid using hot water, which can cause sudden temperature changes. Also, keep the windshield dry whenever possible.

By following these preventive measures, you can reduce the risk of windshield cracks and maintain the structural integrity of your vehicle. Next, we’ll answer some frequently asked questions about windshield cracks.

Frequently Asked Questions about Windshield Cracks

Is it safe to drive with a growing crack on the windshield?

No, it’s not safe to drive with a growing crack on windshield getting bigger. A cracked windshield can compromise the structural integrity of your car. In a rollover accident, the roof is more likely to cave in if the windshield is cracked. Additionally, cracks can distract you by reflecting light into your eyes, which might lead to an accident. In some states, you can even get a ticket for driving with a cracked windshield.

How do I stop my windshield crack from expanding?

There are several methods to stop a windshield crack from spreading until you can get professional help:

Windshield Repair Kits: These kits, available at hardware stores, contain resin that can seal the crack. You’ll need to drill a small hole at the end of the crack and inject the resin to stop it from growing.

Superglue or Nail Polish: Apply a clear layer of superglue or nail polish over the crack to temporarily seal it.

Epoxy: This is a more robust solution. Clean the crack and apply epoxy, letting it dry thoroughly before scraping off any excess.

Sodium Silicate: Also known as liquid glass, this can be applied to the crack to stop it from expanding.

Cerium Oxide: This is a type of polishing compound that can fill in small cracks.

Clear Tape: For a quick fix, you can cover the crack with clear packing tape to keep dirt and moisture out.

Why is the crack in my windshield getting bigger?

Several factors can cause a crack on windshield getting bigger:

Temperature Changes: Glass expands in hot weather and contracts in cold weather. Sudden temperature changes can cause the crack to spread.

Vibrations: Driving over bumpy roads or potholes can cause vibrations that stress the windshield, making the crack worse.

Dirt Buildup: Dirt can get into the crack, making it harder to repair and more likely to spread.

UV Rays: Prolonged exposure to sunlight can weaken the glass and cause cracks to expand.

Bumpy Roads: Driving on uneven surfaces can cause additional stress on the windshield.

Ice Buildup: Water that seeps into the crack can freeze and expand, making the crack larger.

By understanding these factors, you can take preventive measures to avoid worsening the crack and ensure your windshield remains intact.

Conclusion

When it comes to windshield cracks, acting fast is crucial. Ignoring a growing crack can lead to more severe damage, higher repair costs, and even safety risks. That’s where Vista Glass comes in.

We specialize in professional windshield repair and replacement services that ensure your vehicle is safe and roadworthy. Our experienced technicians use advanced techniques and high-quality materials to fix your windshield, whether it’s a small chip or a significant crack.

One of the best parts? We offer a mobile service. That means we can come to you, whether you’re at home, work, or anywhere else. No need to rearrange your busy schedule; we’ll handle the repair on-site, providing you with convenience and peace of mind.

Customer satisfaction is our top priority. We understand how stressful dealing with a cracked windshield can be, and we’re committed to making the repair process as smooth and hassle-free as possible. From the moment you contact us for a free quote to the completion of the repair, our team is here to assist you every step of the way.

Don’t let a windshield crack compromise your safety or your vehicle’s structural integrity. Contact Vista Glass today to schedule your appointment. Your safety is our mission, and we look forward to serving you.

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