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Low viscosity for excellent processability and ease of mixing with epoxy resins
Fast ambient-cure kinetics enabling rapid handling strength development
Superior UV resistance and color stability due to cycloaliphatic amine structure
Low volatility and low odor, supporting safer industrial handling
Excellent chemical and corrosion resistance in cured epoxy systems
High-performance industrial coatings for metal and concrete substrates
Electrical encapsulation and potting compounds requiring dielectric integrity
Adhesives for structural bonding in transportation and wind energy components
Flooring systems demanding rapid return-to-service and long-term durability
Composite matrix resins for aerospace and defense applications
| Chemical Type | Cycloaliphatic amine |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Primary Applications | Coatings, adhesives, composites, encapsulants |
| Key Features | Ambient cure, low viscosity, UV stable, low odor |
| Benefits | Fast green strength, excellent weatherability, reduced VOC impact |
| Storage Stability | 12 months at 25°C in unopened original container |
| Compatibility | Standard bisphenol-A and bisphenol-F epoxy resins |
Q1: What are the key performance advantages of EPIKURE 3389 compared to conventional aliphatic amines?
A: EPIKURE 3389 offers enhanced thermal stability, lower volatility, and reduced skin sensitization potential relative to standard aliphatic amine curing agents. Its cycloaliphatic structure contributes to improved chemical resistance and glass transition temperature (Tg) in cured epoxy systems, while maintaining good reactivity at ambient and elevated temperatures.
Q2: Is EPIKURE 3389 suitable for coatings requiring FDA-compliant food-contact performance?
A: EPIKURE 3389 is not pre-approved for direct food-contact applications under FDA or EU regulations. Formulators must conduct full regulatory evaluation—including migration testing and end-use validation—based on the final cured system’s composition, processing conditions, and intended service environment.
Q3: How does humidity affect the cure behavior and surface quality when using EPIKURE 3389?
A: As a cycloaliphatic amine, EPIKURE 3389 exhibits lower sensitivity to ambient moisture than many primary aliphatic amines. However, high humidity may still lead to surface blush or haze in thin-film applications; proper ventilation and substrate conditioning are recommended for optimal appearance and through-cure.
Q4: Can EPIKURE 3389 be used in low-VOC or high-solids epoxy formulations?
A: Yes—EPIKURE 3389 is a low-viscosity, solvent-free liquid with negligible VOC content, making it well-suited for high-solids, low-VOC, and solvent-free epoxy coating and adhesive formulations. Its compatibility with common epoxy resins supports formulation flexibility without compromising pot life or cure profile.
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