A chip in a windshield occurs when a small rock or other object impacts it, nicking the glass and causing a small damaged spot. This often occurs when the tires of other cars fling debris behind them, and sometimes small rocks can fall out of dump trucks or other similar vehicles. A chip may be a very small spot that is barely noticeable, but most people know instantly when they occur because of the loud popping sound of impact.
Repair chips promptly
Even though the damage seems very minor, it is important to repair the chip as soon as possible. If dirt and debris are embedded into the area of the chip, it will make the repair less effective or even impossible.
Weather and even windshield wipers can force dirt into the chip. Even windshield washer fluid, which contains dyes, can discolor the area. When the repair is eventually done, the result will not be as smooth and clean as it could have been. Instead, the area of the repair will have a cloudy or dirty look, because the resin will seal in that debris.