Windshield repair is the process of filling in small cracks or chips in your windshield. The resin used by professional windshield repair companies is injected into the damage and then heated to harden it. This prevents the crack from spreading and also strengthens the glass. The type of crack or chip will determine if it can be repaired. Generally, cracks in the edge of your windshield are not repairable and will require replacement, while those near the driver’s line of vision can often be repaired.
It is important to fix minor damages promptly, windshield repair even small chips can grow into larger cracks that could impair your visibility on the road and put you at risk for dangerous collisions. Leaving them untreated can lead to more expensive repairs or even necessitate a complete window replacement.
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The location of the crack or chip can also determine if it can be repaired. If the break is near the edge of your windshield it may spread faster and require a full replacement, as this part of the glass is more prone to stress from changes in temperature or pressure. Cracks that extend across the windshield and are in your line of sight should not be repaired as it will hinder your ability to see the road ahead.
It is possible to use a windshield patch to cover up a crack or chip in the windshield, however this method is not commonly used by professional repair technicians. These windshield patches are sold in do-it-yourself repair kits, and they are applied to the top of the crack or chip to hold it together. The resin is injected into the damage and heated to harden it, which will prevent the crack or chip from expanding and strengthening the glass.