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4210 Epoxy Topcoat in Various Colors
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4210 Epoxy Topcoat in Various Colors
Product Description
Product Introduction
4210 is a two-component epoxy topcoat cured with a polyamide adduct. Its coating film is tough, exhibiting excellent adhesion, flexibility, and impact resistance, as well as outstanding chemical resistance.
Application areas
It can be used as a topcoat in high-performance coating systems for protecting steel structures, and as a protective coating on steel structures exposed to alkaline gases, steel structures subjected to coastal salt‑spray environments, concrete surfaces, water tanks, petroleum storage tanks, and similar applications.
Product Information
Appearance: Gray/Other
Solid content by volume: 55±3%
Mixing ratio: 5:1 (by weight)
Mixed-use period: 8 hours (20°C)
Complete curing: 7 days
Recommended dry film thickness: 50 μm (corresponding to a wet film thickness of 91 μm)
Theoretical coverage (50 µm): 11 m²/L or 8.2 m²/kg
Specific gravity: 1.34 kg/L (specific gravity may vary slightly with color)
Flash point: 27°C
Construction conditions
The surface of the primer coat is dry.
Remove oil, dust, and other contaminants from the surface of the previous paint film.
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 5°C; the surface to be treated must be clean and dry.
Painting method
Application Method: Airless Spraying / Air-Assisted Spraying / Brushing / Roller Coating
Thinner 103 Epoxy Thinner
Dilution Ratio: 0–5% (by weight of the paint; the actual amount added may be adjusted according to on-site application methods)
Nozzle diameter: 0.4–0.5 mm
Ejection pressure: 15–20 MPa
Drying time |
||||
Temperature |
5℃ |
10℃ |
20℃ |
30 °C |
Surface dry |
16 hours |
12 hours |
8 hours |
4 hours |
Pragmatism |
48 hours |
36 hours |
24 hours |
12 hours |
Recoating interval |
|||||
Subsequent coating |
Temperature |
5℃ |
10℃ |
20℃ |
30℃ |
Epoxy |
Shortest |
48 hours |
36 hours |
24 hours |
16 hours |
Longest |
14 days |
10 days |
7 days |
5 days |
|
Polyurethane |
Shortest |
48 hours |
36 hours |
24 hours |
16 hours |
Longest |
7 days |
5 days |
72 hours |
72 hours |
|
Paint film thickness/dilution
Non‑recommended film thicknesses may be used depending on the application and site conditions; this will alter the coverage rate and affect drying time and recoat intervals. The typical dry film thickness per coat is 50–100 µm. For spray application, two coats with a total dry film thickness of 100 µm are recommended; for brush or roller application, apply at least three coats and verify the finish.
Packaging Specifications
Component A: 17 kg, Component B: 3.4 kg
Shelf life
Base material: 12 months, Curing agent: 12 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 instruction manual in light of ongoing product improvements.
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