Main Corrosion Causes

1. Harsh Environment Persistent dampness, coastal salt mist, acid industrial rain and drastic temperature fluctuations damage protective coatings and corrode steel.
2. Substandard Surface Treatment Insufficient hot-dip galvanizing zinc thickness, low-grade powder/paint coating, or skipped sandblasting pre-treatment lead to coating peeling and hidden rust.
3. Transport & Installation Damage Scratches from pole friction, forklift collisions, and unpatched welding joints strip anti-rust layers, forming rust origins.
4. Insufficient Regular Maintenance Unrepaired coating scratches, trapped rainwater at the base flange, and lack of timely touch-up paint let rust spread widely.

Targeted Anti-Corrosion Solutions

• Base: ≥85μm standard hot-dip galvanization
• Finish: Acid/salt/UV-resistant outdoor polyester powder coating
• Production: Complete sandblasting + seamless full spraying
• Shipping: Foam wrapping to avoid surface scratches
• After-sales: Matching touch-up paint for on-site repair