Service Procedure
1. After washing vehicle, verify that condition is delamination of topcoat by applying a2 inch width piece of masking tape firmly over suspect area, pulling upward quickly. If topcoat and/or clear coat flake or peel away from primer, leaving primer intact, the topcoat is delaminating and the following service procedure should be performed.
Figure No. 1:
NOTICE: For two tone vehicles, it is only necessary to refinish surfaces painted Galaxy
Blue, Aspen Blue or Steel Gray. Other colors should not be affected by this condition. The front bumper filler panel and all surfaces painted with affected colors above the belt line (Fig. 1, page 3) must be refinished according to the procedure listed below (regardless of previous paint repairs). If surfaces below the belt line and the interior of the pickup box (on pickup models) appear to be in good condition, the dealer should scuff sand, seal and color coat those painted surfaces rather than refinish. However, if any peeling or topcoat delamination is evident, or If scuff sanding produces any topcoat delamination, it will be necessary to refinish these surfaces as well, according to the procedures. It should not be necessary to paint inside of door jambs, or underneath exterior moldings or decals (sunshine stripes), as these areas are not normally subjected to continued ultraviolet exposure.
2. Sand original finish coat of paint down to electro-coat (Elpo) primer, making sure factory pretreatment and Elpo primer are still intact for good corrosion protection. DO NOT USE CHEMICALS TO REMOVE PAINT AS THIS MAY DAMAGE THE ELPO PRIMER.
NOTICE: Rough tape vehicle as necessary (window glass, etc.), and remove nameplates, weatherstrips, and reveal moldings as needed to properly refinish all surfaces as required.
3. Finish sand exposed Elpo primer with 240 grit sandpaper to assure removal of any chalky residue or degraded Elpo primer that may remain as a result of overbaking the primer.
NOTICE: Avoid sanding through Elpo to bare metal when possible.
4. Use an air gun to remove all dirt from cracks and surfaces of truck.
5. Clean sanded surfaces with grease and wax remover.
6. Spray entire prepared area with a coat of DP40/DP401 anti-corrosion primer (PPG/ Ditzler) or equivalent. Follow manufacturers instructions and recommended dry times.
7. Apply 2 to 3 medium wet coats of primer-surfacer to primed surfaces of truck, making sure to follow manufacturers instructions for application.
8. After allowing adequate drying time, wet sand with 400 grit (or finer) sandpaper or dry sand with 320 grit (or finer) sandpaper.
9. Repeat steps 4 and 5.
10. Apply 1 medium wet coat of primer sealer, following manufacturers instructions.
11. Apply 3 to 4 medium wet coats (or until primer color is well hidden) of Acrylic/Urethane Enamel Color. Follow manufacturers instructions.
NOTICE: Reinstall all trim and other items removed in step 2.
12. Final wash and detail vehicle.