(FBE) Single Layer Epoxy Anti-Corrosion Powder Coating
Product Usage:
Suitable for anti-corrosion of oil and gas transmission pipelines, municipal water supply, drainage, sewage, circulating water, chemical industry, and can also serve as a base layer for anti-corrosion in thermal insulation and submarine cable applications.
Product Features:
- Excellent adhesion to the substrate.
- Good leveling of the coating surface with moderate gloss.
- Strong resistance to permeation and corrosion.
- High surface hardness and dense coating, good resistance to plant root penetration.
- Excellent high-temperature cathodic disbondment resistance.
- Low melting temperature, high reactivity, high curing completion rate.
Powder Performance:
Powder Coating Performance Parameters
| Test Item | Technical Specification | Remarks |
|---|---|---|
| Appearance | Uniform color, no lumps | Visual inspection |
| Color | As per customer requirements | Color difference meter |
| Density (g/cm³) | 1.3–1.5 | GB/T 4472 |
| Particle Size Distribution | Residuals ≤3.0 at 150um, ≤0.2 at 250um | GB/T 6554 |
| Non-volatile Content (%) | ≤99.4 | GB/T 6554-1986 |
| Magnetic Substance Content (%) | ≤0.002 | GB/T 2482-1986 |
| Gellation Time at 180°C (s) | ≤100s | GB/T 6554-1986 |
| Gellation Time at 200°C (s) | ≤60s | GB/T 6554-1986 |
| Gellation Time at 230°C (s) | ≤30s | GB/T 6554-1986 |
Cured Powder Coating Performance Parameters
| Test Item | Technical Specification | Remarks |
|---|---|---|
| Appearance | Smooth, uniform color, no bubbles, no cracks, allows slight orange peel | Visual inspection |
| Adhesion (Grade) | 1-3 | SY/T 0315-2005 |
| Negative Electrode at 24h (mm) | ≤6.5 | SY/T 0315-2005 |
| Negative Electrode at 28d (mm) | ≤8 | SY/T 0315-2005 |
| Cross-sectional Crack Rate | 1-4 | SY/T 0315-2005 |
| Coating Surface Porosity Rate | 1-4 | SY/T 0315-2005 |
| Bending Resistance (3°) | No cracks | SY/T 0315-2005 |
| Volume Resistivity | ≤1*10¹³ | GB/T 1410 |
| Electric Strength (MV/m) | ≥30 | GB/T 1408.1 |
| Impact Resistance (1.5J at -30°) | No leakage points | SY/T 0315-2005 |
| Chemical Resistance | Qualified | SY/T 0315-2005 |
| Wear Resistance (Abrasion Method) | ≤3 | SY/T 0315-2005 |
| Salt Spray Test (1000h) | Coating shows no change | GB/T 1771-1991 |
Execution Standard:
SY/T 0315-2005 “Technical Specification for Single Layer Fusion Bonded Epoxy Powder Coating on Steel Pipes”
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