Présentation du produit:
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.
Caractéristiques du produit:
Excellente adhérence au support.
Bon nivellement et haute brillance sur la surface du revêtement.
Forte résistance à la perméation et à la corrosion.
Dureté superficielle élevée et revêtement dense.
Résistance supérieure au décollement cathodique à haute température.
Faible température de fusion, réactivité élevée et taux de durcissement élevé.
Bonnes propriétés mécaniques et flexibilité extrêmement forte.
Complies with safety evaluation standards for materials in contact with drinking water.
Paramètres de performance du revêtement en poudre
| Produit | Indicateur de qualité | Méthode d'essai |
|---|---|---|
| Apparence | Couleur uniforme, sans grumeaux | Inspection visuelle |
| Couleur | Selon les exigences du client | ----- |
| Densité (g / cm³) | 1.3-1.5 | GB / T 4472 |
| Non-Volatile Content (%) | ≥ 99.4 | GB / T 6554-1986 |
| Teneur en substance magnétique (%) | ≤ 0.002 | GB / T 2482-1986 |
Paramètres de performance du revêtement en poudre durci
| Article d'essai | Indicateur technique | Méthode d'essai |
|---|---|---|
| Apparence | Smooth, uniform color, no bubbles, cracks, or pinholes; slight orange peel allowed | Inspection visuelle |
| Adhérence (Grade) | 1-3 | SY/T 0442-1997 |
| Cathodic Disbondment Resistance (65°C, 48h) (mm) | ≤ 8 | SY/T 0413-95 |
| Flexibility (40) | Pas de fissures | SY/T 0442-1997 |
| Electrical Strength (MV/m) | ≥ 30 | GB / T 1408-1989 |
| Résistance aux chocs | ≥ 11 | SY/T 0442-1997 |
| Résistance chimique | Qualified | GB / T 1763-1979 |
| Abrasion Resistance (1000g, 1000 cycles) | ≤ 20 g | GB / T 1768-1979 |
| Test au brouillard salin (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 | Qualified | GB / T 17219-1998 |
Normes de conformité: CJ/T 120-2008. GB/T 17219-1998
Domaines d'application:
Municipal drinking water supply pipes.
Processus de candidature:
Electrostatic spraying, dip coating, etc.
Précautions ::
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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