Dual-Layer Epoxy Anti-Corrosion Powder Coating (External Coating)
Getaquote
whats/app：+86 132 6275 2056
WEB: std-coatings.com
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 FCompliance 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
 |
(FBE) Single Layer Epoxy Anti-Corrosion Powder Coating | WA：+86 132 6275 2056 WEB: std-coatings.com Product Introduction: This product is carefully formulated using epoxy resin and functional curing ... |
 |
Frame & chassis powder coatings MT-A400 series | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product Overview: Weather-resistant pure polyester powder coatings designed for frame a... |
 |
Metal powder coatings | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Introduction Metal powder coatings are specialized finishes designed for metal surf... |
 |
Polyester powder coatings for indoor use MT-300 | Product description MT-300 is a series of polyester resin based thermo-setting powder coatings formulated using TGIC. The pigments used in the MT-... |
 |
Flat metal MT-049/92390 | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com No. MT-049/92390 Color Frost (silver) Surface Flat metal System Polyester S... |
Похожие товары
 |
Metallic flat high gloss MT-049/98010 | Продавец: Standard International Group (HK) Limited | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Introduction No. MT-049/98010 Co... |
 |
Pure epoxy powder coating | Продавец: Standard International Group (HK) Limited | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model CH Product characterist... |
 |
Epoxy polyester powder coating | Продавец: Standard International Group (HK) Limited | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model GA, SF, FX, etc. Produc... |
 |
Pure polyester weather-resistant powder coating Factory Supplier | Продавец: Standard International Group (HK) Limited | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Product model OWP Product characteris... |
 |
Metallic flat semi-gloss Powder Coating MT-049/97003 | Продавец: Standard International Group (HK) Limited | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Introduction No. MT-049/97003 Co... |
