As stated before, the hot-dip galvanized coating could have any number of surface defects. This section will review the various defects and discuss whether or not they are cause for rejection according to the specification. The surface defects reviewed are:
A – C
- Bare Spots
- Blasting Damage
- Chain and Wire Marks
- Clogged Holes
- Clogged Threads
D – E
- Delamination
- Distortion
- Drainage Spikes
- Dross Inclusions
- Excess Aluminum in Galvanizing Bath
F – O
- Fish Boning
- Flaking
- Flux Inclusions
- Oxide Lines
P – R
- Products in Contact
- Rough Surface Condition
- Runs
- Rust Bleeding
S – T
- Sand Embedded in Casting
- Striations
- Steel Surface Condition
- Surface Contaminant
- Touch Marks
U – Z
- Weeping Weld
- Welding Blowouts
- Welding Spatter
- Wet Storage Stain
- Zinc Skimmings
- Zinc Splatter
