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Low-viscosity liquid enabling excellent processability and easy handling in resin systems.
Fast-reacting aliphatic amine chemistry for rapid gelation and early strength development.
Good compatibility with standard bisphenol-A and bisphenol-F epoxy resins.
Provides high crosslink density, resulting in superior chemical resistance and mechanical performance.
Low volatility and reduced amine odor compared to conventional aliphatic curing agents.
High-performance industrial flooring and concrete repair mortars.
Electrical encapsulation and potting compounds for electronics and power components.
Structural adhesives requiring fast fixture time and high bond strength.
Composite matrix resins for wind energy and transportation applications.
Coating systems demanding rapid cure at ambient or moderate elevated temperatures.
| Chemical Type | Aliphatic polyamine |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Density (20 °C) | ~0.92 g/cm³ |
| Viscosity (25 °C) | ~180–220 mPa·s |
| Amine Value | ~420–460 mg KOH/g |
| Reactivity Profile | Fast-curing at ambient temperature |
| Primary Applications | Industrial coatings, adhesives, composites, and flooring systems |
Q1: What is the primary function of Epoxy Curing Agent 350AS in epoxy formulations?
A: Evonik Epoxy Curing Agent 350AS is a specialty amine-based accelerator designed to enhance the reactivity and cure profile of epoxy resins—particularly in ambient- or low-temperature-cure systems—without acting as a primary curing agent itself.
Q2: Is 350AS compatible with common epoxy resins such as DGEBA and novolac types?
A: Yes, 350AS demonstrates broad compatibility with standard bisphenol-A (DGEBA), bisphenol-F, and phenolic novolac epoxy resins, and is frequently used to improve pot life control and final crosslink density in structural adhesives and coating systems.
Q3: How does 350AS affect processing characteristics like pot life and gel time?
A: When incorporated into amine-cured epoxy systems, 350AS typically shortens gel time and accelerates early-stage network formation while allowing formulation flexibility to balance working time and throughput requirements.
Q4: Can 350AS be used in food-contact or high-purity applications?
A: While 350AS is not pre-qualified for direct food-contact use, it may be considered in certain indirect-contact industrial coatings or composite matrices where regulatory compliance is determined by the full formulated system—and subject to end-user validation per applicable regional requirements.
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