Chrome plated plastic parts are extensively used across the automobile industry. Being exterior parts they are subjected to harsh environmental condition. Washing of vehicle will also make these parts more prone to corrosion. Thus the main aim while deciding chemical composition is to decelerate the process of corrosion. This paper describes the process of corrosion and general chemical composition of the overall layers to inhibit and delay the process of corrosion. An experimental study is done to establish the effect of variation in composition of plating layers.