Hot-Dip Galvanized Steel Coating Appearance: Post Galvanizing

Post-galvanizing there are a few factors that can impact the appearance of the zinc coating. After hot-dip galvanizing, steel parts are inspected for conformance to the specifications and at times there is a need for small areas requiring touch-up or repair. Some touch-up and repair practices can lead to differences in appearance. Other coating appearance changes can be discovered after exposure to the environment.
0:38 Post Galvanizing Inspection
0:50 Grinder and File Marks
1:16 Touch Up Materials and Methods
2:38 Vent Hole Plugs
3:08 Wet Storage Stain
3:49 Brown Staining
More information regarding the post hot-dip galvanizing coating appearance can be found on the AGA website:
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