Likely Causes
Common causes include poor surface preparation, contamination, incompatible coating layers, incorrect overcoating intervals, inadequate profile, moisture during application, or mechanical damage.
Where delamination is widespread, the issue may be systemic rather than isolated.
How Delamination Is Assessed
Assessment can include visual inspection, photographic records, defect mapping, adhesion testing, coating thickness checks, and review of coating application records.
The goal is to understand extent, severity, likely mechanism, and whether local repair is enough.
Repair Planning
Repair recommendations should consider surface preparation requirements, edge treatment, compatible coating systems, access constraints, and whether additional inspection is needed before recoating.