Upon the receipt of the primed replacement parts it will be necessary to inspect for surface imperfections that may result from dirt in the primer or damage to the part from shipping. If at any time during this inspection defects are found that will require repair, special care must be given to the part to ensure that the substrate is not exposed. If the substrate is exposed as the result of sanding or scratches incurred during shipment, application of an aggressive paint system may allow solvent migration into the substrate which will lead to a swelling of the leading edge of the damaged coating. To safe guard against this frustrating possibility, the following PPG procedure was developed to provide a less aggressive barrier coat between the substrate and the refinish system.
The following repair procedure is recommended for new Saturn ABS/PC replacement parts which include doorskins, rocker panels, and rear filler panels.