Stone Chip Repairs caused by bad roads 
Stone Chips are the most irritating of all types of damage on a vehicle. They are not caused intentionally by the driver or driver in front, but more of an everyday occurrence when using motorways or on roads. Hard as it may seem no one is untouchable by them, wherever you have a large 4×4 or a small two-seater, at some point in the period of you owning that car you will have had some damage. They are caused mainly by debris on the road, which gets caught up in the rear tires of the car in front, and at some point being flicked out of the thread by centrifugal forces acting on the wheel. The stone would impact on some part of the vehicle following behind, normally on either the front bonnet or offside and near side front wings. The resulting impact would chip out a section of lacquer and paint about the size of the impacting object. This process occurs numerous times throughout a standard journey, some smaller objects bouncing off while other creating damage. If some vehicles use the main motorways regularly, the bonnet and wings of the car will show the scars with large pebble dashed sections on the bonnets nose. Stone chip repairs comes in two main categories
Touch up repairs
Touch up repair. It involves the cleaning of the damaged area with some alcohol based product than a rust preventative placed within the stone chip. After this has dried a primer is added and cured. The next step is to touch in the stone chip with some paint (usually a water based type) followed by a top clear coat of lacquer. After the repair is complete, it is not entirely invisible but to someone looking at a glance would not see it. This repair is the cheaper option and most cost effective.
Stone Chip Panel Respray
It can be considered as the last resort for you would have to have a pretty pebble dashed bonnet/wing to warrant a panel respray. The process of repair is similar to the touch-up repair stated above but carried out on a larger scale. Problems can arise when spraying large panels of a vehicle such as paint matching. It occurs if the car is older than three years or has a metallic or pearlescent finish. Every year of a car’s life the paint would faint slightly year on year, so when the paint is made up this would be its original colour and does not take into account fading or bleaching which occurs over a car’s lifetime.The choice of stone chip repairs method is quite limited and you should choose your option carefully.