1. When and where do i stop peeling back the current coating? Do i remove an entire section? because the wheel well is connected to the underbody and the coating spans the entire bottom side of the car.
2. After i clean the rust area with wire-wheel, how do i prep and reseal the surface? Since the current coating peels in irregular shapes, would i just spray over the existing coating to blend it in? (Not sure if that makes sense. For example, if I'm painting a house, each room is sectioned off so its easy to tell where and when to stop. But in this car, the wheel well, is part of the frame and goes to the underside)