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4217 Chemically Resistant Pure Epoxy Coating
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4217 Chemically Resistant Pure Epoxy Coating
Product Description
Product Introduction
4217 is a two-component, amine‑addition‑cured epoxy coating that exhibits excellent chemical resistance and can withstand long-term immersion in most types of oils.
Application areas
It is widely used as an interior coating for chemical tanks and can also be applied to sewage tanks, brine tanks, and mud‑pit compartments.
Product Information
Appearance: Light gray/iron red
Solid content by volume: 66±2%
Mixing ratio: 4:1 (by volume)
Mixed-use period: 2 hours (20°C)
Complete curing: 7 days
Recommended dry film thickness: 125 μm (corresponding to a wet film thickness of 190 μm)
Theoretical coverage (125 µm): 5.28 m²/L
Specific gravity: 1.45 kg/L (specific gravity may vary slightly with color)
Flash point: 30°C
VOC content: 326 g/L
Construction conditions
Remove surface oil, grease, and other contaminants from the substrate using an appropriate cleaning agent, then rinse with high-pressure fresh water to eliminate surface salts and other impurities.
New steel: sandblasted to Sa2.5 grade, with a surface roughness of Medium (G) (ISO 8503-2).
Welding, flame cutting, or thermal straightening of burned areas: Remove weld slag and spatter, grind the surface smooth, then use an elastic abrasive wheel to achieve a St3 surface finish.
During paint application, 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 0°C; the application surface must be clean and dry.
Painting method
Application Methods: 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 can be adjusted according to on-site application methods)
Nozzle diameter: 0.43–0.53 mm
Ejection pressure: 15–20 MPa
Drying time |
||||
Temperature |
0℃ |
10℃ |
20℃ |
30 °C |
Surface dry |
4 hours |
2 hours |
1 hour |
30 minutes |
To force one's way through |
16 hours |
8 hours |
4 hours |
2 hours |
Recoating interval |
|||||
Subsequent coating |
Temperature |
0℃ |
10 °C |
20 °C |
30 °C |
Epoxy |
Shortest |
14 hours |
12 hours |
6 hours |
4 hours |
Longest |
90 days |
45 days |
30 days |
15 days |
|
Note: If the maximum recoat interval is exceeded, the surface must be thoroughly sanded and roughened prior to painting to ensure adequate adhesion between coats.
Paint Film Thickness/Dilution
Non‑recommended dry film thicknesses may be used depending on the application and substrate; this will affect the coverage rate as well as drying time and recoat intervals. The typical dry film thickness per coat is 100–200 microns.
Packaging specifications
Component A: 13.5 liters, Component B: 4.5 liters
Shelf life
Base material: 12 months; Hardener: 24 months (store in a cool, dry indoor environment, away from direct sunlight)
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 knowledge or 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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