No matter how much of a fantastic result we achieve, there is always an element of risk that there may be some overspray left. Especially when the overspray has made its way on to the plastic trims, unlike the paintwork or glass panels, of which a machine buffer can be used, this cannot be done for plastic trims. Using this technique will only burn through the plastic and turn it grey. This means a less aggressive technique must be used and there are no guarantees until tested/tried. Not all overspray react the same due to many contributing factors involved.
The majority of cars affected by overspray can be dealt with using traditional methods by a professional car detailer. However, in the rare occurrences whereby the usual techniques do show great progress, but still have quite a heavy amount of contamination remaining, then this is where it may require a panel beater instead. This is where the paint will most likely need an aggressive wet-sanding process to sand the surface down to the bare and respray the car with a restorative clear coat. Wet sanding is more often avoided because it is super aggressive and sands down your clear coat (which is what protects your car). Unfortunately, there is no way of knowing how effective one method is until it is performed, severity and stubbornness of overspray will vary from car to car, case by case basis.