Epoxy Resin Curing Agent 7038 is a modified cycloaliphatic amine specifically developed for high-durability epoxy systems. It balances fast curing characteristics with high physical toughness, ensuring a reliable finish for industrial applications.
Core Features and Performance
- Fast Surface Drying: Optimized for efficiency with a fast surface drying speed during the curing process.
- Chemical Resistance: The cured product exhibits excellent resistance to water, acids, and alkalis.
- High Physical Strength: Provides exceptional toughness and high hardness, especially suitable for bed coatings.
- Weather Stability: Offers good weather resistance to maintain the integrity of the coating under various environmental conditions.
- Aesthetic Quality: Features a light color (Gardner Method <3) for applications requiring clarity or specific color matching.
Technical Indicators
| Item | Specification | Test Method |
| Color (Gardner Method) | <3 | GB/T 9281.1 |
| Amine Value (mg KOH/g) | 250 ~ 310 | Perchloric Acid Method |
| Viscosity @25°C (cps) | 150 ~ 300 | GB/T 9751.1 |
| Active Hydrogen Equivalent | 97 | Calculation |
| Mixing Ratio (EEW 190) | 100 : 50 | Recommended |
Curing Characteristics
| Item | Specification |
| Gel Time (50g @25°C) | 40 ~ 60 minutes |
| Linear Drying Time (200um/25°C) | 6.3 / 9.0 hours |
| Curing Hardness (24H, Shore D) | 79. |
Application Scope
This hardener is widely used across several industrial sectors:
- Industrial coatings.
- Floor bed coatings.
- High-strength adhesives.
Packaging & Storage
- Packaging: Available in 200kg net weight iron drums.
- Storage: Must be sealed in the original container and stored in a ventilated, cool place away from fire sources.
- Shelf Life: At least 12 months when stored in sealed original packaging at room temperature.