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1837 Epoxy Zinc-Rich Paint
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1837 Epoxy Zinc-Rich Paint
Product Description
Product Introduction
1837 is a two-component amine-cured epoxy zinc-rich coating that contains a proprietary zinc‑powder activation system, providing superior cathodic protection for steel substrates. This product complies with the requirements of SSPC Paint‑20, Class 2, Category 2 (2019), and ISO 12944‑5 (2018).
Application areas
This product can serve as a versatile, long‑lasting anti‑corrosion primer for severely corrosive environments and is widely applicable to various steel surfaces.
Product Information
Appearance: Metallic Gray
Solid volume: 65±2%
Mixing ratio: 8.5:1.5 (by volume) or 15:1 (by weight)
Mixed application period: 4 hours (20°C)
Complete curing: 7 days (20°C)
Recommended dry film thickness: 60 μm (corresponding to a wet film thickness of 92 μm)
Theoretical coverage (60 µm): 10.8 m²/L or 4.7 m²/kg
Specific gravity: 2.3 kg/L (specific gravity may vary slightly with color)
Flash point: 25°C
VOC content: 330 g/L
Construction conditions
Remove oil, grease, and other contaminants by cleaning with an appropriate detergent.
Sandblasting to Sa2.5 grade.
Surface roughness: Medium (G) (ISO 8503-2).
The substrate temperature must be at least 3°C above the dew point, and the ambient relative humidity must be below 85%.
Use this product only under conditions where application and curing can proceed normally at temperatures above –10°C; the application surface must be clean and dry.
It is recommended that the temperature during construction not exceed 40°C.
Painting method
Application Method: Airless Spraying / Air-Assisted Spraying / Brushing / Roller Coating
Thinner 103 Thinner
Dilution Ratio: 0–5% (by weight of the paint; the actual amount added can be adjusted according to on-site application methods)
Nozzle diameter: 0.43–0.53 mm
Ejection pressure: 25 MPa
Drying time |
||||
Temperature |
0℃ |
10℃ |
20℃ |
30 °C |
Surface dry |
60 minutes |
30 minutes |
15 minutes |
10 minutes |
Pragmatism |
3 hours |
2 hours |
1 hour |
45 minutes |
Recoating interval |
|||||
Subsequent coating |
Temperature |
0℃ |
10 °C |
20 °C |
30 °C |
Epoxy |
Shortest |
90 minutes |
60 minutes |
45 minutes |
30 minutes |
Longest |
Unlimited |
Unlimited |
Unlimited |
Unlimited |
|
Polyurethane |
Shortest |
90 minutes |
60 minutes |
45 minutes |
30 minutes |
Longest |
90 days |
45 days |
14 days |
7 days |
|
Note: If the maximum recoat interval is exceeded, the surface must be roughened to ensure adhesion between coats, and zinc salts and other contaminants must be removed.
Paint film thickness
The typical dry film thickness for a single coat is 40–100 microns. During application, the coating thickness must be strictly controlled, with the maximum dry film thickness not exceeding 200 µm.
Packaging Specifications
Component A: 13.6 liters, Component B: 2.4 liters
or
Component A: 34.5 kg, Component B: 2.3 kg
Shelf life
Base material: 12 months, Curing agent: 24 months
Safety measures
Refer to the company’s Material Safety Data Sheet (MSDS).
Disclaimer: The information and data provided herein are based on our testing and practical experience, and are intended as a guide for application. For applications carried out under conditions beyond our control, we warrant only the quality of the paint itself; we assume no responsibility for any other issues. We reserve the right to revise this manual in light of ongoing product improvements.
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