Bridge Steel Structure Anti-Corrosion Solution

## Application Scenarios Highway bridges, railway bridges, urban elevated roads, pedestrian overpasses, and other steel structure anti-corrosion coating applications. ## Recommended Coating Systems ### Option 1 (Standard) | Coat | Product | Coats | DFT (μm) | |------|---------|-------|----------| | Primer | Epoxy Zinc-Rich Primer (30%) | 2 | 100 | | Intermediate | Epoxy MIO Intermediate Coat H1100C | 1 | 80 | | Topcoat | Acrylic Anti-Corrosion Topcoat | 2 | 70 | | **Total** | | **5** | **250** | ### Option 2 (Premium) | Coat | Product | Coats | DFT (μm) | |------|---------|-------|----------| | Primer | Epoxy Zinc-Rich Primer (60-80%) | 2 | 100 | | Intermediate | High-Build Epoxy MIO Intermediate Coat | 1 | 120 | | Topcoat | Fluorocarbon Topcoat | 2 | 80 | | **Total** | | **5** | **300** | ### Option 3 (Bridge Bottom / Immersed Areas) | Coat | Product | Coats | DFT (μm) | |------|---------|-------|----------| | Primer | Epoxy Zinc-Rich Primer | 2 | 100 | | Intermediate | High-Build Epoxy MIO Intermediate Coat | 1 | 120 | | Topcoat | Epoxy Coal Tar Anti-Corrosion Paint | 2 | 120 | | **Total** | | **5** | **340** | ## Surface Preparation - Blast cleaning Sa2½ - Surface roughness Rz 50-85 μm - Cleanliness: Free of oil and dust ## Design Life - Standard option: 15-20 years - Premium option: 20-25 years - Immersed area option: 25-30 years