ISO 12944: C1
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C1 - Interior Dry Environment Anti-Corrosion Solution
For indoor dry environments such as office buildings, residences, and dry warehouses with low corrosion risk
Applicable Standards
ISO 12944-2: C1 ISO 12944-5: 低腐蚀防护体系
## Corrosion Environment Definition
**ISO 12944-2 C1 Grade** — Indoor dry environment, steel surfaces have almost no corrosion risk.
Typical environments: Heated building interiors, offices, residences, dry warehouses, clean environments.
## Recommended Anti-Corrosion System
| Coat | Product | Coats | DFT (μm) |
|------|---------|-------|----------|
| Primer | Alkyd Anti-Rust Primer | 1 | 25-35 |
| Topcoat | Alkyd Enamel / Alkyd Ready-Mixed Paint | 1-2 | 30-40 |
| **Total** | | | **55-75** |
## Surface Preparation
- Hand or power tool cleaning St2/St3
- Blast cleaning Sa2 (optional)
## Design Life
Design service life: Low (< 2 years) to Medium (2-15 years), depending on the specific system.
## Application Scenarios
- Office building steel structures
- Residential building interior steel components
- Dry warehouse shelving
- Interior decorative steel frames
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