Dual-Layer Epoxy Anti-Corrosion Powder Coating -best powder coat for outdoor use
Product Introduction:
This dual-layer epoxy powder coating is formulated using multiple types of epoxy resins and functional curing agents. The base layer, like other epoxy anti-corrosion coatings, offers excellent corrosion resistance. The outer layer not only maintains corrosion protection but also enhances the protective properties, making it suitable for highly demanding anti-corrosion environments, especially for pipelines crossing mountainous areas, rivers, and hilly regions.
Product Features:
Excellent adhesion between the base layer and the substrate, as well as between the epoxy layers.
Strong resistance to permeation and corrosion.
The outer layer has high hardness and density, is scratch-resistant, and provides good resistance to plant root penetration.
The coating has excellent resistance to high-temperature cathodic disbondment.
Powder Coating Performance Parameters
| Item | Quality Indicator | Test Method |
|---|---|---|
| Appearance | Uniform color, no lumps | Visual inspection |
| Volatile Content (%) | ≤ 0.6 | Q/CNPC 38-2002 Appendix B |
| Curing Time (230°C) (min) | ≤ 3 | SY/T 0315-2005 |
| Magnetic Substance Content (%) | ≤ 0.002 | GB/T 6570 |
Cured Powder Coating Performance Parameters
| No. | Test Item | Technical Indicator | Test Method |
|---|---|---|---|
| 1 | Appearance | Smooth, uniform color, no bubbles, cracks; slight orange peel allowed | Visual inspection |
| 2 | Adhesion (Grade) (24h or 48h) | 1-2 | SY/T 0315-2005 |
| 3 | Cathodic Disbondment Resistance (24h or 48h) (mm) | ≤ 6 | SY/T 0315-2005 |
| Cathodic Disbondment Resistance (28d) (mm) | ≤ 8 | SY/T 0315-2005 | |
| Cross-Section Porosity of Base Layer | 1-4 | SY/T 0315-2005 | |
| Bonding Surface Porosity of Base Layer | 1-4 | SY/T 0315-2005 | |
| 4 | Flexibility (2°) (0° or -30°) (Ordinary Grade) | No cracks | Q/CNPC 38-2002 Appendix D |
| Flexibility (1.5°) (0° or -30°) (Enhanced Grade) | No cracks | Q/CNPC 38-2002 Appendix D | |
| Impact Resistance (10J) (Ordinary Grade) | No pinholes | Q/CNPC 38-2002 Appendix E | |
| Impact Resistance (15J) (Enhanced Grade) | No pinholes | Q/CNPC 38-2002 Appendix E | |
| Scratch Resistance (30Kg) (Ordinary Grade) | Scratch depth ≤ 350 µm, no leakage | Q/CNPC 38-2002 Appendix F | |
| 8 | Scratch Resistance (50Kg) (Enhanced Grade) | Scratch depth ≤ 500 µm, no leakage | Q/CNPC 38-2002 Appendix F |
Compliance Standard: Q/CNPC 38-2002
Application Fields:
Complex anti-corrosion environments, especially pipelines crossing mountainous areas, rivers, and hilly regions.
Application Process:
Electrostatic spraying.
Precautions:
The steel pipe surface should be free of oil and moisture; the surface treatment quality should reach Sa2 1/2 level (GB/T 8923); the anchor pattern depth should be 50-90 mm; dust and abrasives on the steel pipe surface should be blown clean.
The product should be stored in a well-ventilated, dry indoor environment with a temperature below 30°C, away from heat sources, corrosive chemicals, and chemical solvents, and protected from strong light exposure; the stacking height should not exceed four layers; avoid long-term pressure, ensure the packaging box is sealed to prevent caking and moisture, which can affect fluidization performance.
在线联系供应商
Other supplier products
 |
Wrinkle powder coating | Applications & Advantages of Wrinkle Powder Coating CategoryDetailsDescription Main Applications Metal Furniture Used for office ... |
 |
Powder Coating for Electrostatic Spray Application on Cold Surfaces | Product Description MT R4-ES HJ601R is a high quality thermosetting epoxy powder coating for the corrosion protection of valves and fittings, manu... |
 |
Aluminum profile powder | Brief description Made with saturated polyester resin and curing agent such as TGIC or HAA as the main base material. Features Excellent mechani... |
 |
Polyester Powder Coating | Product Introduction:This series of products is a thermosetting powder coating made from a mixture of saturated polyester resin, corresponding curi... |
 |
Anodized Powder Coating | It is suitable for anodic oxidation effect for product appearance, as well as environmental protectionrequirements such as Rohs and Reach. Coating... |
Same products
 |
Hot Melt Adhesive for Vacuum Insulation Panels | 卖方: Foshan Rurga New Material Technology Co. ,Ltd | Hot Melt Adhesive for Vacuum Insulation Panels Supply & Technical Support Capabilities ... |
 |
Hot Melt Adhesive for Packaging | 卖方: Foshan Rurga New Material Technology Co. ,Ltd | Hot Melt Adhesive for Packaging Bond Strength & Durability: Hot melt adhesives provide i... |
 |
Hot Melt Adhesive for Hygiene Products | 卖方: Foshan Rurga New Material Technology Co. ,Ltd | Hot Melt Adhesive for Hygiene Products refers to thermoplastic pressure‑sensitive adhesives ... |
 |
LSAW Steel Pipe & Tube | 卖方: HEBEI TIRICO PIPELINE CO.,LTD | LSAW Steel Pipe & Tube , or Longitudinal Submerged Arc-Welding Pipe (also known as SAWL ... |
 |
Anti-Corrosion Steel Pipe & Tube | 卖方: HEBEI TIRICO PIPELINE CO.,LTD | Anti-Corrosion Steel Pipe & Tube Anti-Corrosion Steel Pipe & Tube What Is an Anti... |
