1. Probable Cause / Reason
•    Contact with staining substances like oils, chemicals, or dirt.
•    Absorption of liquids that discolor the paint surface.
•    Spillage or contamination during or after application.
•    Exposure to environmental factors like rain, smoke, or grime.

2. Correction
•    Clean the stained area with appropriate cleaners or solvents.
•    Sand and repaint if the stain has penetrated the coating.
•    Identify and eliminate the source of contamination.
•    Use stain-blocking primers or sealers if needed.

3. Corrective Action / Prevention
•    Prevent exposure to staining agents during and after painting.
•    Use darker or stain-resistant coatings in high-risk areas.
•    Maintain good housekeeping and protective practices around painted surfaces.

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