Dissolving paper (22) covers pressure sensitive adhesive (20) on a mounting face (18) of an object (16) to be mounted on an exterior surface of a body panel (10) of a motor vehicle by a mechanical fastening system (24). The mounting is exposed to a water wash. Water begins to be absorbed by the dissolving paper through the edge of the paper's outer perimeter. As the paper increasingly absorbs water, it dissolves in the water exposing the adhesive which then adheres to the panel.