Paint Exceptions And Associated Repair Procedures (G1676685): Contamination

Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

Description 

Any foreign substance or chemicals which adhere to the surface or become embedded in the paint by chemical action. Excessive exposure to unfavorable atmospheric conditions. Contamination may appear as spots, speckles or splash-like deposits, this is often associated with stains, especially on metallic paint films.

Industrial Fallout/Acid Spotting/Rust Specks: 

Airborne particles from industrial activities can contaminate paint film surfaces and may consist of various deposits. The paint surface is usually dusted with particles, tiny colored spots, minute stains, greasy or tacky spots and feels 'gritty'. When closely examined with a low-powered magnifying lens the particles may be seen embedded into or adhering to the paint, possibly with a stain surrounding it or rust, if it is ferrous, from the particle.

Cement Deposit/Dust 

Easily recognizable by the deposit. Severe staining in the form of spots or streaks will result if the deposits are allowed to remain on the paint film.

Leaves/Berries 

Wet leaves, tree sap and resins allowed to remain on the paint film and exposed to strong sunlight will cause discoloration and staining of the surface. Berries or fruits will stain paints if they are allowed to decompose on the paint film.

Salt Deposits 

Salt deposits from handling, water or other fluids allowed to remain on the paint surface can result in detachment of the paint film from the underlying surface.

Warranty Related Cause 

• Not normally an exception arising from manufacturing process. This is not normally a warranty related exception, but should this exception be apparent at PDI report the exception through EPQR.

Non-warranty Related Cause(s) 

• Poor storage of new vehicles.
• Failure to refinish vehicles properly.
• Refinished surfaces subjected to careless handling.
• Defective oven or drying room.

Prevention 

• Store vehicles as detailed in the New Vehicle Storage Manual.
• Do not expose soft paint finishes to atmospheres likely to cause contamination

Rectification Process 

1. Wash with a mild detergent solution.
2. Rinse with a 10% oxalic acid solution.
3. Remove any remaining stains by polishing, or by light compounding and polishing.