im gonna be honest i dont know a whole lot about vehicles. My bed liner in my f-150 has had a lot of rust for a while now and i was wondering that if i spray this: http://www.amazon.com/Plastikote-Truck-Liner-Spray-aerosol/dp/B000CPI03W over the top of my bed liner will that get rid of the rust look? Also will it screw up anything? Thanks.