(DPS) Dual-Layer Epoxy Anti-Corrosion Powder Coating
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”
Send product request
Other supplier products
 |
Polyester/TGIC powder coating series | Introduction： Made of polyester resin and TGIC curing agent as the main raw materials. Features: —Good adhesion, excellent mechanical prop... |
 |
Powder Coatings Exclusive Use for Aluminum Profile | Features: -Excellent weatherability ,good mechanical properties -good resistance to boiling ,excellent corrosion resistance -good resistance to ... |
 |
Application-Based Powder Coating Solutions | Precision Coating Solutions by Industry Use Our powder coatings aren’t one-size-fits-all—they’re designed forthe real-world dema... |
 |
Agricultural machinery powder Coating | Brief description Made with saturated polyester resin and curing agent such as TGIC or HAA as the main base material. Features Excellent mecha... |
 |
Metallic sand texture matte MT-019/91274 | Introduction No. MT-019/91274 Color Metallic color Surface Metallic sand texture matte System Weather-resistant polye... |
Same products
 |
Sucralose powder Food additive | Seller: Shanghai Yifu Food Ingredients Co., Ltd | Sucralose, as a new generation of high-sweetness sweetener, has demonstrated comprehensive and ou... |
 |
Sucralose Purchase price | Seller: Shanghai Yifu Food Ingredients Co., Ltd | Sucralose, as a high-sweetness, calorie-free, and highly stable artificial sweetener, enjoys wide... |
 |
Sucralose Partners, long-termCooperation | Seller: Shanghai Yifu Food Ingredients Co., Ltd | Sucralose is currently a widely used high-potency sweetener globally. Its safety has been verifie... |
 |
Sucralose Marke quotation | Seller: Shanghai Yifu Food Ingredients Co., Ltd | Sucralose is a high-sweetness agent obtained by replacing the hydroxyl groups at positions 4, 1',... |
 |
Sucralose Supply price | Seller: Shanghai Yifu Food Ingredients Co., Ltd | Sucralose is a trichloro derivative of sucrose (4,1',6'-trichloro-4,1',6'-dideoxy-galactosucrose)... |
