Type II Single-Layer Heavy-Duty Anti-Corrosion Powder Coating
We are a manufacturer based in China. We specialize in providing high-quality Type II Single-Layer Heavy-Duty Anti-Corrosion Powder Coating 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
1. Product Overview
This series of powder coatings is a thermosetting pure epoxy heavy-duty anti-corrosion powder coating. When applied to the surface of preheated steel products, the powder melts, fuses, and cures to form a uniform and dense coating film, effectively preventing corrosion caused by corrosive substances.
The coating features excellent toughness, abrasion resistance, and impact resistance. It suffers minimal damage during transportation and underground installation, and can withstand soil stress and impact during backfilling. It has excellent flexibility and bending resistance.
The coating provides excellent coverage and adhesion on weld seams, irregularly shaped workpieces, and steel reinforcement bars. It is especially suitable for the coating of long-distance transmission pipelines and construction steel reinforcement. It is a heavy-duty anti-corrosion powder coating featuring convenient application, rapid curing, and outstanding performance.
2. Main Technical Specifications
Curing Conditions
| Curing Temperature | Curing Time |
|---|---|
| 230℃ | 1~3 min |
Note:
When EPY2-II powder coating is applied to preheated workpieces, it utilizes the residual heat of the substrate for curing, and generally does not require additional post-curing heating. However, for thin-wall pipes or applications under extremely low ambient temperatures, additional heating may be required to complete the curing process.
Powder Properties
| Test Item | Test Method | Technical Specification |
|---|---|---|
| Appearance | Visual Inspection | Uniform color, no agglomeration |
| Curing Time (230℃ ± 3℃) (min) | SY/T 0315 | ≤ 2. and within the specified range |
| Density (g/cm³) | GB/T 4472 | 1.30-1.50 |
| Non-volatile Content (%) | GB/T 6554 | ≥ 99.4% |
| Particle Size and Distribution (%) | GB/T 6554 | 150 μm ≤ 0.2 250 μm ≤ 3.0 |
| Gel Time (230℃ ± 3℃) (s) | GB/T 6554 | ≤ 30 |
| Thermal Property ΔH (J/g) | SY/T 0315 | ≥ 45 |
| Tg (℃) | SY/T 0315 | ≥ Maximum Service Temperature + 40 |
| Magnetic Material Content (%) | GB/T 6570 | ≤ 0.002 |
Coating Performance
| Test Item | Test Method | Technical Specification |
|---|---|---|
| Appearance | Visual Inspection | Smooth surface, uniform color, no bubbles, cracks, or shrinkage cavities; slight orange peel texture is acceptable |
| Thermal Property ΔTg (℃) | SY/T 0315 | ≤ 5 |
| Degree of Cure (%) | SY/T 0315 | ≥ 95 |
| Cathodic Disbondment at 65℃, 48h (mm) | SY/T 0315 | ≤ 6.5 |
| Cathodic Disbondment at 65℃, 28d (mm) | SY/T 0315 | ≤ 15 |
| Bending Resistance (-30 ± 3℃) (3°) | SY/T 0315 | No cracks after bending |
| Impact Resistance (-30 ± 3℃) (1.5J) | SY/T 0315 | No holidays |
| Cross-sectional Porosity (Grade) | SY/T 0315 | 1~4 |
| Adhesive Interface Porosity (Grade) | SY/T 0315 | 1~4 |
| Adhesion Strength (24h) (Grade) | SY/T 0315 | 1~3 |
| Adhesion Strength (28d) (Grade) | SY/T 0315 | 1~3 |
| Dielectric Strength (MV/m) | GB/T 1408.1 | ≥ 30 |
| Corrosion Resistance (Sand Abrasion Method) L/μm | SY/T 0315 | ≥ 3 |
| Volume Resistivity (Ω·m) | GB/T 1410 | ≥ 1×10¹³ |
| Cathodic Disbondment Resistance After Bending (28d) | SY/T 0315 | No cracks at 2.5° |
| Chemical Medium Corrosion Resistance | SY/T 0315 | Qualified |
3. Application Range
Internal and external surfaces of long-distance transmission pipelines.
Pipe fittings and irregular components, including:
Flanged pipe fittings
Elbows
Valves
Pumps
Internal and external surfaces of containers for corrosive liquid chemical products.
4. Safety and Hygiene
This product is non-toxic, environmentally friendly, and non-flammable. However, appropriate protective measures should be taken to prevent excessive inhalation during construction and application.
5. Packaging, Storage and Transportation
The product is packed in cardboard cartons with polyethylene inner bags.
Net weight: 25 kg per package.
Store in a dry, ventilated, and clean environment below 30℃ for up to 12 months. Keep away from fire sources and heating equipment.
After opening, any unused powder must be resealed properly to prevent moisture absorption from the air.
Protect from direct sunlight and rain. When the ambient temperature exceeds 35℃, appropriate insulation and temperature-control measures should be taken during storage and transportation.
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