1. Probable Cause / Reason
•    Moisture entering through small defects like pinholes or scratches in the coating.
•    Inadequate surface preparation before painting.
•    Use of low-quality or unsuitable coating systems.
•    High humidity environments that promote electrochemical corrosion.

2. Correction
•    Remove all affected coating and corrosion by sanding or blasting.
•    Clean and dry the surface thoroughly before repainting.
•    Recoat using a high-quality, corrosion-resistant system.
•    Seal all edges, seams, and weak spots properly to block moisture.

3. Corrective Action / Prevention
•    Ensure proper surface preparation and cleanliness before painting.
•    Use coatings designed to resist moisture and corrosion.
•    Store and apply coatings in controlled environments to avoid humidity exposure.

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