(FBE) Single Layer Epoxy Anti-Corrosion Powder Coating
WA：+86 132 6275 2056
WEB: std-coatings.com
Product Introduction:
This product is carefully formulated using epoxy resin and functional curing agents. It features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, solvents, cathodic disbondment, as well as superior flexibility and impact resistance.
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:
MT SY/T 0315-2005 “Technical Specification for Single Layer Fusion Bonded Epoxy Powder Coating on Steel Pipes”
Curing Conditions:
| Property | Specification | Remarks |
|---|---|---|
| Temperature | 200-230°C for 3-1.5 minutes | Medium-frequency heating recommended |
Application Parameters:
| Parameter | Specification | Notes |
|---|---|---|
| Applicable Equipment | Frictional charging spray, corona electrostatic spray | |
| Film Thickness | 250-450um | Adjustable according to workpiece requirements |
Storage Period:
The product can be stored for 6 months in dry conditions below 30°C.
The used coating must be re-sealed immediately to prevent moisture absorption affecting performance.
Packaging: 20kg paper boxes lined with plastic bags.
Health and Safety:
The product is non-toxic and non-flammable, but follow GB15607-1995 coating operation safety regulations when using.
Precautions:
Do not mix different types of powders.
Not recommended for outdoor use; fading and chalking may occur with long-term outdoor exposure.
The steel pipe surface should be free of oil and moisture, with surface treatment quality reaching Sa21/2 level (GB/T8923), anchor pattern depth should be 40-100um, and the surface should be cleaned of dust and abrasives.
Preheating: The temperature should be controlled between 180-230°C.
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