Introducción del producto:
This is a thermosetting epoxy-modified heavy-duty anti-corrosion powder coating specifically designed for epoxy-coated reinforcing steel. The product uses imported two-step special epoxy resins, functional epoxy resins, and dedicated anti-corrosion curing agents. It features excellent reactivity, strong adhesion, good toughness and flexibility, and superior resistance to chemicals, solvents, cathodic disbondment, and impact. The formulation has been tested and proven effective by authoritative departments.
Características del producto:
Excelente adherencia al sustrato.
Recubrimiento denso, continuo y brillante, con baja permeabilidad y mínimos poros.
Resistencia superior al desprendimiento catódico y alto aislamiento eléctrico.
High bond strength with concrete and strong grip.
Good toughness, does not crack when bent.
Baja temperatura de fusión, alta reactividad, alta tasa de curado y buenas propiedades mecánicas.
Versátil y de bajo consumo de polvo.
Reduce o elimina la formación de hilos durante el proceso de recubrimiento en polvo.
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) | 1.2 - 1.5 | GB/T4472 |
| Tamaño promedio de partícula | 30µm-50µm | Analizador de tamaño de partículas láser |
| Contenido volátil (%) | ≤ 0.6 | GB/T6554 |
| Contenido de sustancia magnética (%) | ≤ 0.002 | GB / T 2482-86 |
| Tiempo de curado (s) | 230°C ≤ 60s | GB/T6554 |
Parámetros de rendimiento del recubrimiento en polvo curado
| No. | Elemento de prueba | Indicador tecnico | Método de prueba |
|---|---|---|---|
| 1 | Apariencia | Smooth, continuous, no bubbles, cracks, or pinholes | Inspección visual |
| 2 | Desunión catódica | ≤ 2mm | GB / T 25826-2010 |
| Continuity | No holes, gaps, cracks, or visible defects | GB / T 25826-2010 | |
| 3 | Flexibility (40mm) | No visible cracks, breaks, or coating detachment | GB / T 25826-2010 |
| 4 | Resistencia a la adherencia | Coating bond strength not less than 85% of uncoated steel | GB 50152 |
| 5 | Fuerza de impacto | No coating fragmentation | GB / T 25826-2010 |
| 6 | Permeabilidad al cloruro | < 1×10⁻⁴ M | GB / T 25826-2010 |
| 7 | Resistencia química | No softening, bubbling, good adhesion, no pinholes, no pitting | GB / T 25826-2010 |
| 8 | Resistencia a la abrasión | ≤ 100 miligramos | GB / T 1768-1979 |
| 9 | Prueba de niebla salina (800 h) | ≤ 3mm | GB / T 25826-2010 |
Normas de cumplimiento: JG 3042-1997; GB/T 25826-2010
Los campos de aplicación:
Bridges, ports, airports, buildings, basements, high-speed railways, and other infrastructure projects.
Proceso de Solicitud:
Pulverización electrostática.
Precauciones:
The reinforcing steel surface should be free of oxide scale, revealing the metal’s original color; the surface roughness should meet the standard, ideally 50-70 mm; the rust removal grade should reach Sa2 1/2 level (GB/T 8923), with no chloride residues. Preheating temperature should be controlled between 220-245°C.
The product should be stored in a well-ventilated, dry indoor environment with a temperature below 27°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.
Due to the high reactivity of this product, the recommended storage period is within 3 months at 27°C. If used beyond the storage period, the performance should be verified in advance.
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