Dual-Layer Epoxy Anti-Corrosion Powder Coating (External Coating)
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.
在线联系供应商
Other supplier products
 |
Plaza powder coating | Introduction Characteristics of powder coatings 1. The coating film is flat and smooth; 2. The paint film has good physical and mechanical pro... |
|
|
Powder coatings for brake calipers MT-A1243 /MT-BW104GF / MT-301.727S | Product Description MT-A1243 for brake components combines toughness and durability with excellent corrosion and chemical resistance. They also co... |
 |
Acrylic polyol resin & Thermoplastic acrylic resin STD-U5018 | Introduction TYPE:Acrylic polyol resin & Thermoplastic acrylic resin PRODUCT:STD-U5018 Basic Specifications PropertyValue / Specificati... |
|
|
Polyurethane primer STD-927 | Product Description The one-component primer can improve the surface condition of the base layer, making it flatter and smoother, providing a good... |
 |
Frame & chassis powder coatings MT-A400 series | Product Overview: Weather-resistant pure polyester powder coatings designed for frame and chassis parts Coating characteristics: – High ... |
Same products
 |
蓝翠鸟威尼斯灰泥涂料 墙面艺术灰泥 奢华质感 | 卖方: 中山蓝翠鸟新型环保材料有限公司 | 产品概述 蓝翠鸟威尼斯灰泥是商业空间与艺术场馆优选的艺术涂装材料，以精选天然石膏、环保水性成膜物质为原料，肌理独特且富有层次感，耐擦洗、易维护，适配商业展厅墙面、艺术画廊展墙、高端餐厅主题墙面... |
 |
蓝翠鸟天鹅绒纹理漆 室内设计高级感墙面装饰漆 | 卖方: 中山蓝翠鸟新型环保材料有限公司 | 产品概述 这是一款为空间注入情绪的涂料。天鹅绒般柔和的哑光表面，拥有安抚视觉和心灵的效果，能自然营造出宁静、安全、包裹感的氛围。特别适用于打造家庭阅读角、私人工作室、瑜伽室或任何您需要放松... |
 |
蓝翠鸟 水包砂 | 高弹抗裂 外墙专用涂料 | 卖方: 中山蓝翠鸟新型环保材料有限公司 | 产品概述 蓝翠鸟高弹抗裂水包砂，专为应对墙体细微开裂问题而设计。其涂层具备优异的弹性与延展性，能有效桥接并遮盖基层微裂缝，适用于易产生温度应力或轻微沉降的建筑外墙，提供持久的完美外观。 ... |
 |
蓝翠鸟 简修天鹅绒覆盖漆 | 旧墙翻新神器 遮盖涂料 | 卖方: 中山蓝翠鸟新型环保材料有限公司 | 产品概述 厌倦了老旧的墙面？蓝翠鸟简修天鹅绒漆是您的快速翻新方案。它拥有超强的遮盖力和附着力，能直接覆盖大多数旧墙面（如乳胶漆、腻子层），简化施工步骤。快速赋予老旧空间全新的天鹅绒质感与现... |
 |
商业空间用瓷砖胶——高效施工、耐磨耐用 | 卖方: 中山蓝翠鸟新型环保材料有限公司 | 产品概述 瓷砖胶是适用于商场、酒店、写字楼等商业空间的专业粘结材料，以优质水泥、级配石英砂、特种聚合物改性剂为原料，采用薄贴工艺实现高效贴砖，提升施工效率，且具备优异耐磨性，可承受高人流量磨损... |
