Dual-Layer Epoxy Anti-Corrosion Powder Coating -best powder coat for outdoor use
Product Introduction:
This dual-layer epoxy powder coating is formulated using multiple types of epoxy resins and functional curing agents. The base layer, like other epoxy anti-corrosion coatings, offers excellent corrosion resistance. The outer layer not only maintains corrosion protection but also enhances the protective properties, making it suitable for highly demanding anti-corrosion environments, especially for pipelines crossing mountainous areas, rivers, and hilly regions.
Product Features:
Excellent adhesion between the base layer and the substrate, as well as between the epoxy layers.
Strong resistance to permeation and corrosion.
The outer layer has high hardness and density, is scratch-resistant, and provides good resistance to plant root penetration.
The coating has excellent resistance to high-temperature cathodic disbondment.
Powder Coating Performance Parameters
| Item | Quality Indicator | Test Method |
|---|---|---|
| Appearance | Uniform color, no lumps | Visual inspection |
| Volatile Content (%) | ≤ 0.6 | Q/CNPC 38-2002 Appendix B |
| Curing Time (230°C) (min) | ≤ 3 | SY/T 0315-2005 |
| Magnetic Substance Content (%) | ≤ 0.002 | GB/T 6570 |
Cured Powder Coating Performance Parameters
| No. | Test Item | Technical Indicator | Test Method |
|---|---|---|---|
| 1 | Appearance | Smooth, uniform color, no bubbles, cracks; slight orange peel allowed | Visual inspection |
| 2 | Adhesion (Grade) (24h or 48h) | 1-2 | SY/T 0315-2005 |
| 3 | Cathodic Disbondment Resistance (24h or 48h) (mm) | ≤ 6 | SY/T 0315-2005 |
| Cathodic Disbondment Resistance (28d) (mm) | ≤ 8 | SY/T 0315-2005 | |
| Cross-Section Porosity of Base Layer | 1-4 | SY/T 0315-2005 | |
| Bonding Surface Porosity of Base Layer | 1-4 | SY/T 0315-2005 | |
| 4 | Flexibility (2°) (0° or -30°) (Ordinary Grade) | No cracks | Q/CNPC 38-2002 Appendix D |
| Flexibility (1.5°) (0° or -30°) (Enhanced Grade) | No cracks | Q/CNPC 38-2002 Appendix D | |
| Impact Resistance (10J) (Ordinary Grade) | No pinholes | Q/CNPC 38-2002 Appendix E | |
| Impact Resistance (15J) (Enhanced Grade) | No pinholes | Q/CNPC 38-2002 Appendix E | |
| Scratch Resistance (30Kg) (Ordinary Grade) | Scratch depth ≤ 350 µm, no leakage | Q/CNPC 38-2002 Appendix F | |
| 8 | Scratch Resistance (50Kg) (Enhanced Grade) | Scratch depth ≤ 500 µm, no leakage | Q/CNPC 38-2002 Appendix F |
Compliance Standard: Q/CNPC 38-2002
Application Fields:
Complex anti-corrosion environments, especially pipelines crossing mountainous areas, rivers, and hilly regions.
Application Process:
Electrostatic spraying.
Precautions:
The steel pipe surface should be free of oil and moisture; the surface treatment quality should reach Sa2 1/2 level (GB/T 8923); the anchor pattern depth should be 50-90 mm; dust and abrasives on the steel pipe surface should be blown clean.
The product should be stored in a well-ventilated, dry indoor environment with a temperature below 30°C, away from heat sources, corrosive chemicals, and chemical solvents, and protected from strong light exposure; the stacking height should not exceed four layers; avoid long-term pressure, ensure the packaging box is sealed to prevent caking and moisture, which can affect fluidization performance.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Light pole powder | Introduction Accurate selection of powder has always been a problem for the powder industry. To solve this problem, we name the powder according t... |
 |
Pure polyester weather-resistant powder coating | Product model OWP Product characteristics Excellent weather resistance and mechanical properties Product application Used for surface coating ... |
 |
Powder coating for New energy | Insulating powder coating product advantages Good electrolyte resistance; Excellent corrosion resistance; Excellent chemical resistance; Proo... |
 |
Pure epoxy powder coating/industrial powder coating production line | Product model CH Product characteristics Excellent performance, strong versatility, excellent corrosion resistance and electrical insulation. P... |
 |
Building Materials Super Weather Resistant Powder/ | Powder characteristics With excellent weather resistance, it not only has the characteristics of environmental protection and super weather resist... |
Похожие товары
 |
Trimellitic anhydride 97% | Продавец: Yufeng International Group Co., Ltd | Trimellitic anhydrideis a 2-benzofuran compound having oxo groups at the 1- and 3-positions and a... |
 |
Isobutyric Anhydride CAS 97-72-3 | Продавец: Yufeng International Group Co., Ltd | Product Name: Isobutyric Anhydride CAS No.: 97-72-3 Purity: 99% Molecular Formula: C6H10O3 Mo... |
 |
Isobutyric Acid CAS 79-31-2 | Продавец: Yufeng International Group Co., Ltd | Product Name:ISOBUTYRIC ACID Synonyms: 2-Methylpropanoic acid 79-31-2 Isobutanoic acid 2-Met... |
 |
2-Amino-2-methyl-1-propanol（AMP）CAS：124-68-5 | Продавец: Yufeng International Group Co., Ltd | AtYufeng, a trusted 2-Amino-2-methyl-1-propanol Factory & Supplier, we prioritize quality and... |
 |
Dimethyl sulfoxide (DMSO) CAS: 67-68-5 | Продавец: Yufeng International Group Co., Ltd | Yufengis one of the leading dimethyl sulfoxide suppliers and also a professional such manufacture... |
