Powder Coating for Steel Pipe Piles
We are a manufacturer based in China, specializing in high-quality Powder Coating for Steel Pipe Piles for industrial clients worldwide. Technical support and custom formulation available.
Category:Application industries, powder Coating | Brand:MT
Introduction
Product Characteristics
· Excellent adhesion and corrosion resistance;
· High cost-performance ratio, long service life, and low maintenance cost;
· Wide temperature resistance range;
· Excellent scratch resistance;
· Excellent abrasion resistance and erosion resistance;
· An efficient corrosion protection system fully compatible with cathodic protection systems without barriers;
· According to the protection requirements of different sections of steel pipe piles, single-layer or double-layer structures can be designed; it can also be combined with weather-resistant polyester powder coating for UV exposure environments; reinforced fibers can also be used for external wrapping to further improve mechanical damage resistance;
· 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 GB/T 18593 Corrosion Protection Coating of Fusion Bonded Epoxy Powder Coatings;
· Complies with CSA Z245.20 Plant-applied External Fusion Bond Epoxy Coating for Steel Pipe.
Performance Specifications of Epoxy Powder
|
Item |
Test Method |
Technical Specification |
| Density (g/cm³) | GB/T 4472 | 1.3~1.8 |
| Thermal Property Tg2 (℃) | GB/T 39636 | ≥100℃ |
| Particle Size Distribution (%) 150μm | GB/T 6554 | ≤0.2 |
| Particle Size Distribution (%) 250μm | GB/T 6554 | ≤3.0 |
| Volatile Content (%) | GB/T 6554 | ≤0.4 |
| Gel Time (s) 230℃ | GB/T 6554 | ≥12 |
| Curing Time (min) 230℃ | GB/T 39636 | ≤3 |
| Magnetic Material Content (%) | JB/T 6570 | ≤0.002 |
Performance Specifications of Epoxy Coating
|
Item |
Test Method |
Single Epoxy Powder Coating Performance Specification |
Double Epoxy Powder Coating Performance Specification |
| Appearance | Visual Inspection | Smooth, uniform color, no bubbles, cracks, or shrinkage holes | Smooth, uniform color, no bubbles, cracks, or shrinkage holes |
| Cathodic Disbondment (65℃, 48h, -1.5V) | SY/T 0315 | ≤5mm | ≤5mm |
| Porosity Cross Section | SY/T 0315 | Grade 1-3 | Grade 1-3 |
| Porosity Bonding Surface | SY/T 0315 | Grade 1-3 | Grade 1-3 |
| Adhesion (90±3℃, 15d) | SY/T 0315 | Grade 1 | Grade 1-2 |
| Abrasion Resistance (CS-10. 1kg, 1000r) | GB/T 1768 | ≤100mg | ≤60mg |
| Impact Resistance (20±3℃) | SY/T 0315 | 10J, no leakage points | 10J, no leakage points |
| Bending Resistance (0±3℃) | SY/T 0315 | 3°, no cracks | 2°, no cracks |
| Bond Strength of Primer Layer | GB/T 5210 | ≥65MPa | ≥65MPa |
| Dielectric Strength | GB/T 1480.1 | ≥30MV/m | ≥30MV/m |
| Volume Resistivity | GB/T 1410 | ≥1×10¹²Ω·m | ≥1×10¹²Ω·m |
| Water Absorption (60℃, 15d) | GB/T 18593 | ≤3% | ≤3% |
| Scratch Resistance 30kg | SY/T 4113.1 | ≤350μm, no leakage points | ≤350μm, no leakage points |
Application Areas
Suitable for corrosion protection of steel pipe piles in civil engineering projects, bridge engineering projects, and oil & gas engineering projects.

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