Friday, June 6, 2014
How to Fix Large Cracks on a Windshield
If your vehicle gets old enough, chances are your windshield will get chipped or cracked. Replacing an entire windshield can be costly and is not environmentally friendly. In many cases windshields dont need to be replaced, particularly if the damage is minor. Most small chips and cracks can be easily repaired. You can do the job yourself in a few steps.
Instructions
- 1
Prepare the windshield by thoroughly cleaning the cracked area. Before you begin the repair process, make sure the windshield is clean, free of debris, and completely dry.
2Take a razor blade and scrape off any excess glass particles that might be trapped in the crack itself, as well as any dried sap, bug carcasses, or other debris.
3Clean the windshield thoroughly with soap and water, and let dry. Once completely dry, apply the glass cleaner solution.Solutions come in a variety of types, including chemical-based and eco-friendly.
4Follow the directions on the auto glass repair kit, making sure you follow the exact steps. The synthetic glass resin used in these kits can be volatile if not applied correctly.
5Apply the syringe of liquid glass compound to the inside of the crack, snapping and pulling the syringe across the length of the crack slowly. Use your clock or watch to precisely time these motions so the resin will fill in the crack without allowing any trapped air bubbles.
6Fill in the entire crack from end to end with the resin, then let it sit under direct sunlight or ultraviolet lamp. The UV rays will chemically alter the resin from a liquid to a solid state.
7Let the resin set for several hours to allow the curing process to finish. Once finished, use your razor blade to scrape any excess resin from the windshield.
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