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First identify the damage
Handling or installation may locally damage galvanized coatings. Later cutting or welding can also affect the protective layer. Start by identifying where the surface is affected and to what extent. Match photographs with component numbers; an uncoated area, a surface mark and a colour variation should not automatically be treated as the same issue.
How is a repair method selected?
Repair suitability depends on damaged area, surface condition, access and project acceptance requirements. Zinc-based repair options exist, but product selection and application need technical assessment. A spray labelled as containing zinc does not establish adequate performance for every situation. Surface preparation and application checks form part of the repair plan.
Reduce repeat damage
Record repaired locations and methods in delivery or maintenance documents. Review contact points during securing, lifting and installation. Resolving cutting and welding requirements during pre-galvanizing design can reduce later interventions. Share damage photographs and project requirements with Galmetsan to provide the information needed for assessment.
Recording work after installation
A site-drilled hole, cut end or welded area can be overlooked after installation. Matching site changes to component marks helps coating inspection. Knowing which area was sound before an intervention clarifies the assessment. After repair, record the method and inspection information rather than only noting that work was completed. Identify difficult access in advance. This keeps coating repair traceable within the delivery and maintenance records.