Single Layer External Fusion Bonded Epoxy Powder Coating for Pipeline
We are a manufacturer based in China. We specialize in providing high-quality Single Layer External Fusion Bonded Epoxy Powder Coating for Pipeline for industrial clients across various sectors. Whether you need chemicals consultation or technical support, our team is here to help.
Category：Application industries Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Product Characteristics
· No primer required, with excellent adhesion;
· Excellent balance between gelation rate and flow rate, with suitable melt viscosity, preventing sagging phenomenon;
· Dense coating structure with extremely low porosity, reducing the risk of pinhole formation;
· Excellent resistance to cathodic disbondment;
· Excellent bending resistance;
· Outstanding chemical corrosion resistance;
· Long service life under harsh environmental conditions;
· Complies with GB/T 39636 Technical Specification for External Fusion Bonded Epoxy Powder Coating of Steel Pipelines;
· Complies with SY/T 0315 Technical Specification for External Fusion Bonded Epoxy Powder Coating of Steel Pipelines;
· Complies with CSA Z245.20 Plant-applied External Fusion Bond Epoxy Coating for Steel Pipe;
· Complies with ISO 21809-2 Petroleum and Natural Gas Industries — External Coatings for Buried or Submerged Pipelines Used in Pipeline Transportation Systems — Part 2: Single Layer Fusion-Bonded Epoxy Coatings.
Performance Specifications of Epoxy Powder
|
Item |
Test Method |
Performance Specification |
| Curing Time (min) 230℃ | GB/T 39636 | ≤2; customized according to requirements |
| Gel Time (s) 230℃ | GB/T 39636 | ≤30; customized according to requirements |
| Thermal Property △H (J/g) | — | ≥45; customized according to requirements |
| Thermal Property Tg2 (℃) | GB/T 39636 | ≥40℃ above maximum operating temperature; can be designed from 95℃ to 140℃ |
| Density (g/cm³) | GB/T 39636 | 1.3~1.5 |
| Particle Size Distribution (%) 150μm | GB/T 21782.1 | ≤3 |
| Particle Size Distribution (%) 250μm | GB/T 21782.1 | ≤0.2 |
| Magnetic Material Content (%) | JB/T 6570 | ≤0.002 |
| Volatile Content (%) | GB/T 39636 | ≤0.6 |
Performance Specifications of Epoxy Coating
|
Item |
Test Method |
Performance Specification |
| Cathodic Disbondment Resistance (mm) 65℃, -1.5V, 48h | SY/T 4113.3 | ≤5 |
| Cathodic Disbondment Resistance (mm) 65℃, -1.5V, 28d | SY/T 4113.3 | ≤15 |
| Bending Resistance -30℃, 3° | SY/T 4113.5 | No cracks |
| Impact Resistance -30℃, 2J | GB/T 39636 | No pinholes |
| Porosity (Grade) Cross Section | GB/T 39636 | 1~3 |
| Porosity (Grade) Bonding Surface | GB/T 39636 | 1~3 |
| Adhesion (Grade) 75℃, 24h | GB/T 39636 | 1~2 |
| Adhesion (Grade) 75℃, 28d | GB/T 39636 | 1~3 |
| Abrasion Resistance (mg) CS-17. 1kg, 1000r | GB/T 1768 | ≤100 |
| Volume Resistivity (Ω·m) | GB/T 31838.2 | ≥1×10¹² |
| Dielectric Strength (MV/m) | GB/T 1408.1 | ≥30 |
| Cathodic Disbondment Resistance After 2.5° Bending 20℃, -1.5V, 28d | GB/T 39636 | No cracks |
| Chemical Corrosion Resistance 20℃, 90d | SY/T 4113.9 | No change |
Suitable for external anti-corrosion protection of long-distance pipelines and anti-corrosion protection of buried steel structure foundations.
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