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How to fix a long cracked windshield at home

How to fix a long cracked windshield at home

Mafi Mech, October 28, 2023October 28, 2023

A cracked windshield can be a nuisance, not to mention a safety hazard. While it’s always advisable to consult a professional for extensive windshield damage, you can repair long cracks at home with the right tools and guidance. This DIY guide will walk you through the steps to fix a long cracked windshield in a safe and effective manner.

Tools and Materials You’ll Need

Before you start, gather the necessary tools and materials. You can find windshield repair kits at your local auto parts store or order one online. A basic kit usually includes:

1. Windshield repair resin

2. Syringe or applicator

3. Curing strips

4. Razor blade

5. Cleaning cloth

6. Safety gloves

7. Safety glasses

Step 1: Choose the Right Conditions

It’s crucial to work in the right environment. Ensure that the temperature is above 50°F (10°C) for proper resin curing. Avoid repairing the windshield in direct sunlight, as this can cause the resin to harden too quickly.

Step 2: Clean the Crack

Thoroughly clean the windshield around the crack using a glass cleaner and the provided cleaning cloth. This step is vital to ensure that the resin adheres properly and the repair is effective.

Step 3: Apply the Resin

Next, insert the applicator or syringe into the resin bottle. Some kits come with a plunger-style applicator, while others may have a syringe-type tool. Follow the instructions provided with your kit to attach the applicator to the crack.

Gently squeeze the resin into the crack. The resin should fill the crack completely, but be careful not to overfill, as this can create a mess. If the crack is very long, work on one section at a time.

Step 4: Remove Air Bubbles

Once you’ve applied the resin, check for air bubbles. Use the syringe or applicator to push the resin into the crack and ensure there are no air pockets. This may take a few minutes of gentle pressure.

Step 5: Place Curing Strips

After removing any air bubbles, cover the crack with curing strips or clear plastic film, depending on your kit’s instructions. These strips prevent the resin from curing too quickly and help it bond properly.

Step 6: Allow Resin to Cure

Let the resin cure in the sunlight or under a UV lamp, as per the manufacturer’s instructions. This typically takes about 15-30 minutes. Ensure that the windshield is not in direct sunlight during this time.

Step 7: Remove Curing Strips and Excess Resin

Once the resin is fully cured, gently remove the curing strips or plastic film. If any excess resin remains on the windshield, carefully scrape it away using a razor blade. Be cautious not to scratch the glass.

Step 8: Polish the Windshield

To make your repair less noticeable and enhance visibility, gently polish the windshield with a glass polish or a soft cloth. This will also ensure that the repair blends in with the rest of the glass.

Conclusion

Fixing a long cracked windshield at home is possible with the right tools, materials, and a bit of patience. However, it’s essential to remember that DIY repairs have their limitations, and they may not be suitable for all types of windshield damage. If the crack is too extensive or close to the edge of the windshield, it’s best to consult a professional for a safe and lasting repair.

By following these steps, you can restore the safety and aesthetics of your windshield while saving money and time. If done correctly, a DIY windshield repair can extend the life of your windshield and prevent the crack from spreading, ensuring your safety on the road.

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