Drilling Windshield to Stop Crack: Effective Repair Techniques Explained

Windshield cracks can be a serious nuisance, often leading to full replacements if not addressed promptly.

We understand the gravity of even a small fissure in the windshield, as it can compromise the structural integrity of the vehicle and obstruct the driver’s view if it spreads.

Luckily, there’s a technique in windshield repair that might seem counterintuitive at first: drilling into the windshield.

By carefully drilling at the ends of the crack, we can effectively create an endpoint to prevent it from spreading further.

Drill pierces windshield to halt crack

Once the drilling is done, resin is injected into the crack. This resin adheres to the glass and dries clear, restoring the windshield’s strength and clarity.

Drilling and resin injection are delicate processes that require the right tools and knowledge.

We’re experienced in determining exactly how far to drill without causing more damage and how to properly introduce the resin into the drilled hole.

This technique is a well-recognized repair method in the industry and, if done correctly, can save both time and money by avoiding a full windshield replacement.

Assessing Windshield Damage

Before we attempt to halt the spreading of a windshield crack, it’s vital to accurately assess the damage.

Crack identification and depth evaluation are essential to determine the appropriate repair approach.

Identifying the Type of Crack

Different types of windshield cracks warrant different treatment methods. We need to pinpoint the kind of crack to ensure we handle it correctly:

  • Impact Crack: Usually occurs when an object strikes the windshield.
  • Stress Crack: Can develop over time due to temperature fluctuations or structural weaknesses.
  • Pressure Crack: Often results from excessive force applied to the windshield surface.

Proper identification is crucial: Misdiagnosis could lead to ineffective repairs or further damage.

Evaluating Crack Depth and Spread

Once we’ve identified the type of crack, our next step is to determine its depth and how far it has spread.

This assessment helps us decide if drilling is a viable option.

  • Check the length: Measure how long the crack is.
  • Assess the width: Use a magnifier if necessary to see how wide it is.
  • Determine the depth: Shallow cracks might just affect the surface layer.
Act promptly to assess the damage. Time is of the essence to prevent spreading.

By evaluating the damage with attention to these specifics, we can establish whether the crack is still in a state where it can be stopped from spreading, or if the windshield requires a more comprehensive intervention.

Aging of the windshield and environmental factors should also be considered during our assessment as they may affect the structure and integrity of the glass.

Immediate Temporary Fixes

When a windshield crack appears, immediate action can prevent further damage. Our focus here is on two reliable temporary methods until professional repair can be sought.

Using Nail Polish and Superglue

Nail Polish as a Filler: Quick application technique involves the use of clear nail polish.

  • Ensure the cracked area is clean and dry.
  • Apply a thin layer of clear acrylic nail polish directly into the crack and over the surface area.
  • Allow it to dry completely to form a seal that keeps moisture out.

Superglue as a Sealant: Super glue can also act as a transparent protective layer.

Important: Superglue should be used sparingly, just enough to fill the crack without overflowing onto the surrounding glass.

Implementing Tape Solutions

Packing Tape Protection: Clear packing tape can shield the crack temporarily, especially from dirt and moisture.


  • Cut a piece of clear packing tape.
  • Apply it carefully over the crack without creating air bubbles.

Parking in the shade can additionally minimize the risk of the crack spreading due to heat expansion.

Remember, these are only temporary fixes, and we advise seeking professional windshield repair as soon as possible.

These simple steps can buy you time and keep the crack from getting worse in the short term.

Professional Windshield Repair

In addressing windshield cracks, seeking professional help is crucial for safety and longevity.

Professional repair services provide expert assessment and use specialized resin for durable results.

When to Seek Professional Help

Indications for professional windshield repair include:
  • Crack that’s longer than a dollar bill
  • Crack that penetrates more than one layer of the glass
  • Damage located in the driver’s line of sight
  • Complex cracks such as stars or bullseyes

We recommend professional assessment even for small cracks or chips, as they can quickly worsen if not addressed promptly.

DIY windshield repair kits are available, but they sometimes fall short of a repair shop’s quality, especially for more severe or intricate damage.

The Repair Process Explained

Once we decide to consult professional repair services, they typically follow this process:

  1. Inspection: A thorough examination of the damage to determine the most effective repair method.

  2. Cleaning: The crack is cleaned of debris and moisture to ensure a pristine environment for the resin.

  3. Resin Application:

    • Type of resin: The professional selects from a variety of specialized resins to match the type of damage.
    • Injection: The resin is carefully injected into the crack or chip.
    • Curing: Once injected, the resin is cured, often with a UV light, to harden it and bond the crack.
  4. Polishing: The repaired area is polished to restore clarity and blend the repair with the surrounding glass.

Professional windshield repair aims for a near-invisible finish while restoring the windshield’s structural integrity and safety features.

Replacement and Prevention in Windshield Maintenance

In taking care of our vehicle’s windshield, understanding when to opt for a full replacement and how to prevent damage is crucial for maintaining safety and visibility.

A compromised windshield can lead to accidents or injury due to reduced visibility and weakened structural integrity.

Knowing When Replacement Is Necessary

Safety should always be our priority.

When a windshield incurs damage that goes beyond superficial scratches and reaches deep into the glass, we consider replacement.

This is vital for maintaining the windshield’s structural integrity, a crucial part of the vehicle’s overall strength.

A severely cracked or damaged windshield may increase the risk of injury or fatality in the event of an accident.

Visibility is also a non-negotiable factor; we ensure that the driver’s line of sight is crystal clear for safe driving.

Glass Doctor and other professionals offer assessments for these scenarios.

Preventative Measures for Windshield Care

We can take several steps to prevent stress cracks.

Simple preventative measures can significantly extend the lifespan of a windshield.

Regular inspections and maintenance help spot potential issues early on.

Minimizing exposure to extreme temperature changes reduces the risk of stress cracks, while avoiding parking under direct sunlight limits the chances of minor cracks expanding.

Preventative Measure Benefit
Regular Inspections Early Detection of Damages
Avoiding Temperature Extremes Decreased Stress Cracks Likelihood
Using Sun Shades Protection from Sunlight

Always opting for permanent solutions, we treat even the smallest chips before they become larger problems.

DIY fixes such as filling minor cracks with resin can be a temporary solution, but they do not replace the effectiveness of professional repairs.

Taking these preventative measures seriously helps in maintaining the windshield’s optimal condition, ensuring our safety on the road.

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