After painting and clearing the inside of the cab of my truck I was wondering What grit do I need to sand the overspray in the door jambs and windshield jambs areas before I spray base on the exterior of the cab? I am worried about the base adhesion to the clear in those areas if I don’t have it sanded correctly. I was planning on masking at the gasket edges so the tape line will be under the gasket. Thanks for the help!