Introducción del producto:
This product is formulated using special epoxy resins, dedicated curing agents, and food-grade pigments and fillers. It features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, solvents, cathodic disbondment, as well as superior flexibility and impact resistance.
Características del producto:
Excelente adherencia al sustrato.
Buen nivelado y alto brillo en la superficie del revestimiento.
Gran resistencia a la permeación y a la corrosión.
Alta dureza superficial y recubrimiento denso.
Resistencia superior al desprendimiento catódico a altas temperaturas.
Baja temperatura de fusión, alta reactividad y alta tasa de curado.
Buenas propiedades mecánicas y una flexibilidad extremadamente alta.
Complies with safety evaluation standards for materials in contact with drinking water.
Parámetros de rendimiento del recubrimiento en polvo
| Asunto | Indicador de calidad | Método de prueba |
|---|---|---|
| Apariencia | Color uniforme, sin grumos | Inspección visual |
| Color | Según los requisitos del cliente | ----- |
| Densidad (g / cm³) | 1.3 - 1.5 | GB/T4472 |
| Non-Volatile Content (%) | ≥ 99.4 | GB / T 6554-1986 |
| Contenido de sustancia magnética (%) | ≤ 0.002 | GB / T 2482-1986 |
Parámetros de rendimiento del recubrimiento en polvo curado
| Elemento de prueba | Indicador tecnico | Método de prueba |
|---|---|---|
| Apariencia | Smooth, uniform color, no bubbles, cracks, or pinholes; slight orange peel allowed | Inspección visual |
| Adhesión (Grado) | 1 - 3 | SY/T0442-1997 |
| Cathodic Disbondment Resistance (65°C, 48h) (mm) | ≤ 8 | SY/T0413-95 |
| Flexibility (40) | Sin grietas | SY/T0442-1997 |
| Electrical Strength (MV/m) | ≥ 30 | GB / T 1408-1989 |
| Resistencia al impacto | ≥ 11 | SY/T0442-1997 |
| Resistencia química | Calificado | GB / T 1763-1979 |
| Abrasion Resistance (1000g, 1000 cycles) | ≤ 20 g | GB / T 1768-1979 |
| Prueba de niebla salina (1000 h) | No change in coating | GB / T 1771-1991 |
| Flattening Test (Flattening ratio 4/5) | No cracks at welds | CJ / T 120-2008 |
| Water Quality Soaking Test | Calificado | GB / T 17219-1998 |
Normas de cumplimiento: CJ/T 120-2008. GB/T 17219-1998
Los campos de aplicación:
Municipal drinking water supply pipes.
Procesos de solicitud:
Electrostatic spraying, dip coating, etc.
Precauciones:
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. Preheating temperature should be controlled between 180-230°C.
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 and ensure the packaging box is sealed to prevent caking and moisture, which can affect fluidization performance.
To ensure thorough curing of the epoxy coating and better anti-corrosion performance, it is recommended to preheat the steel pipe surface to above 170°C to improve the curing completion rate.
Do not mix with other anti-corrosion powders or recycled powders. Thoroughly clean the spraying equipment when changing colors to ensure drinking water safety and compliance with health standards.
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