(DPS) Dual-Layer Epoxy Anti-Corrosion Powder Coating/powder coating for engineering service providers
Product Introduction:
This dual-layer epoxy powder coating system is carefully formulated using special epoxy resins and functional curing agents. The base layer, like other epoxy anti-corrosion powder coatings, offers excellent anti-corrosion properties. The outer layer, while maintaining anti-corrosion properties, enhances protective performance. Compared to a three-layer PE structure, it offers a lower comprehensive anti-corrosion cost.
Product Usage:
Suitable for complex anti-corrosion environments, especially pipelines crossing through mountainous, river, and hilly areas.
Product Features:
- Excellent adhesion between the base material and the epoxy layers.
- Strong resistance to permeation and corrosion with high curing completion rate.
- High hardness of the outer coating, dense coating, scratch-resistant, and good resistance to plant root penetration.
- Excellent high-temperature cathodic disbondment resistance and superior mechanical properties.
Powder Performance:
Powder Coating Performance Parameters
| Test Item | Technical Specification | Remarks |
|---|---|---|
| Appearance | Uniform color, no lumps | Visual inspection |
| Particle Size Distribution | Residuals ≤4.0 at 150um, ≤0.2 at 250um | Q/CNPC 38-2002 Appendix C |
| Volatile Content (%) | ≤0.6 | Q/CNPC 38-2002 Appendix B |
| Gellation Time at 205±3°C (s) | ≥12 | Q/CNPC 38-2002 Appendix A |
| Curing Time at 230°C (min) | ≤3 | SY/T 0315-2005 |
| Magnetic Substance Content (%) | ≤0.002 | GB/T 6570 |
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) | 1-2 | 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:
Q/CNPC 38-2002 “Technical Specification for Double 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 | 250-500um | Adjustable according to workpiece requirements |
在线联系供应商
Other supplier products
 |
Radiator Powder Coating/powder coating powder cost | Main Features of Radiator Powder Coating Excellent leveling properties, with high gloss and high color saturation Exceptional adhesion Good dela... |
 |
Metallic flat matte MT-019/74639 | Introduction No. MT-019/74639 Color Gray Surface Metallic flat matte System Weather-resistant polyester Scope of... |
 |
Single-Layer Epoxy Anti-Corrosion Powder Coating (External Coating) | Product Introduction: This product is formulated using epoxy resin, functional curing agents, and a meticulous design. It features high reactivity... |
 |
Forklift Powder | Introduction It is made of polyester resin and epoxy resin as the main base materials, and has the excellent decorative, mechanical properties and... |
 |
Blue Sand Texture Powder Coating | What is Powder Coating? Powdercoating is a new type of 100% solid powder coating which does not contain solvents. With no solvent, no pollution, e... |
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... |
