Hidden chip on used car
When buying a used car, some used car dealers hide the chips or cracks by covering them up with paint, bird dodo or some type of sign on the windshield. So use a razor blade and carefully scrape off what ever is on the windshield to check it out before you purchase the car. Used car dealers will carefully paste things on the windshield chip so they can sell the car without the chips or cracks being noticed. When you buy the car and get it home its too late. You bought it now the chip or crack is your problem. The sooner you repair the windshield the better.