Causes: Storage of close packed pieces under damp conditions. Packing pieces while damp. Lack of ventilation during storage. Effect: Protective value of coating lessened in extreme cases due to prevention of formation of protective film of zinc carbonates. Light staining will eventually wear off due to weathering with no effect on the protective value of the coating. Rejectable Guardrail Conditions Continued Wet Storage Stains (White Rust) Continued Photo 73 Condition: Wet Storage Stains (White Rust) Causes: Storage of close packed pieces under damp conditions. Packing pieces while damp. Lack of ventilation during storage. Effect: Protective value of coating lessened in extreme cases due to prevention of formation of protective film of zinc carbonates. Light staining will eventually wear off due to weathering with no effect on the protective value of the coating. Rejectable Guardrail Conditions Continued Wet Storage Stains (White Rust) Continued Photo 74 Condition: Wet Storage Stains (White Rust) Causes: Improper storage. The material should not be in contact with the ground surface or decaying matter.
Causes: Storage of close packed pieces under damp conditions. Packing pieces while damp. Lack of ventilation during storage. Effect: Protective value of coating lessened in extreme cases due to prevention of formation of protective film of zinc carbonates. Light staining will eventually wear off due to weathering with no effect on the protective value of the coating. Rejectable Guardrail Conditions Continued Wet Storage Stains (White Rust) Continued Photo 73 Condition: Wet Storage Stains (White Rust) Causes: Storage of close packed pieces under damp conditions. Packing pieces while damp. Lack of ventilation during storage. Effect: Protective value of coating lessened in extreme cases due to prevention of formation of protective film of zinc carbonates. Light staining will eventually wear off due to weathering with no effect on the protective value of the coating. Rejectable Guardrail Conditions Continued Wet Storage Stains (White Rust) Continued Photo 74 Condition: Wet Storage Stains (White Rust) Causes: Improper storage. The material should not be in contact with the ground surface or decaying matter.
Guide%20to%20Inspection%20of%20Hot-Dip%20Galvanized%20Products.docx