I have a white vehicle that has a film of dirt that seems to be embedded in the paint. I tried a clay bar this past week, and it didnt seem to work. It seems to me that it needs a good polish maybe? It's not oxidized, but you can see where dirty hands leave marks on doors, and especially on the lower half of the car, the spray from rain days seems to have left behind a film that doesnt wash off. What process takes this film off?
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