Bodywork & Painting question 71 dart

You want to keep the vehicle out of the weather while doing body work. Hot spots of rust can happen in one day leaving bare metal exposed due to humidity and oils from your hands. Once the mil thickness gets too large you want to strip to bare steel. If you are having someone do the work for you it is sometimes best to remove as much trim and such as possible. This way the bodyman doesn't need to charge you for all the R&I of these items.