Repair Procedure For Severe Acid Rain Damage

REPAIR PROCEDURE FOR SEVERE ACID RAIN DAMAGE: SANDING AND REPAINTING

If it has been determined that the acid damage has penetrated more than 1/2 mil on a metallic or pearl color, or 1 mil on a solid color, the following guidelines for sanding and repainting should be followed.

1. Wash vehicle surface using mild automotive soap & water and rinse with Deionized Water until all residue is removed. Clean the affected areas with an appropriate silicone/wax remover (DuPont 3939, PPG DX330/DX380 or equivalent*).

2. Using a dual action (DA) sander, completely sand affected areas as required to eliminate any depressions or soft spots in paint surface (Note: It is recommended to sand down into the base primer coat, commonly known as the E.D. coat. It is not recommended to completely remove the E.D. coat as this coat provides corrosion protection). Finish sand the surface with # 600 grit wet/dry paper.

3. Wash vehicle surface using mild automotive soap and water. Rinse with Deionized Water until all residue is removed from the surface. Clean sanded areas with an appropriate silicone/wax remover (DuPont 3939, PPg DX330/DX380 or equivalent*).

4. Apply a urethane enamel (DuPont Cronar, PPG Deltron, or equivalent) color coat or base coat/clear coat as required for maximum repair durability (lacquer type paint is not recommended for this application). Follow the paint manufacturer's recommendations for detailed application of paint and mid-coat adhesion promoter procedures as required.

* Check with State and Local ordinances regarding use and disposal of all chemicals.