When you find a stone chip on the windscreen, you have to assess the extent of the problem to see if you just repair the crystal or must be replaced.

The rules that allow only windshield repair provide the chip is no larger than a 25 cent coin, because the presence of a crack greater would necessarily involve the replacement of the crystal.

For your windshield repair, chipping must be at a distance of more than 6 inches from the seal and should not coincide with the area of the driver, because in addition to being dangerous to the person, would limit his vision while driving.

It is good practice not to rely solely on this information for evaluation of the problem, but to go as soon as possible in a center Service, to seek advice and assessment of the problem to a team of professionals, who use only certified materials to repair chipping.