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Fast ambient-cure capability with excellent through-cure performance at room temperature.
Low viscosity and low vapor pressure for improved handling, mixing, and reduced VOC exposure.
Enhanced chemical resistance—particularly to alkalis, solvents, and industrial cleaners.
Superior UV stability and yellowing resistance compared to standard aliphatic amines.
Good compatibility with standard liquid epoxy resins (e.g., DGEBA types) without phase separation.
High-performance industrial flooring systems requiring rapid return-to-service.
Electrical encapsulation and potting compounds for power electronics and transformers.
Structural adhesives in wind energy blade assembly and automotive composite bonding.
Corrosion-resistant coatings for concrete and steel infrastructure in chemical plants.
Tooling and mold-making resins demanding dimensional stability and low exotherm.
| Chemical Type | Modified cycloaliphatic amine |
| Product Form | Liquid |
| Appearance | Pale yellow to light amber, clear |
| Density (20 °C) | ~0.92–0.94 g/cm³ |
| Viscosity (25 °C) | 200–400 mPa·s |
| Amine Value | 380–420 mg KOH/g |
| Reactivity Profile | Medium–fast (gel time ~30–60 min at 23 °C with standard DGEBA resin) |
| Primary Applications | Room-temperature curing epoxy systems requiring toughness and chemical durability |
Q1: What are the key performance advantages of Baxxodur ECX2221 compared to conventional cycloaliphatic amine curing agents?
A: Baxxodur ECX2221 offers improved compatibility with a broad range of epoxy resins, reduced volatility and skin sensitization potential, and enhanced pot life control while maintaining fast cure kinetics at elevated temperatures. Its modified structure also contributes to lower exotherm profiles in thick-section applications.
Q2: Is Baxxodur ECX2221 suitable for ambient-cure formulations?
A: While it is primarily optimized for heat-cured systems (e.g., 80–120 °C), ECX2221 can support limited ambient-cure performance when used in combination with co-catalysts or reactive accelerators — however, full property development typically requires thermal post-cure.
Q3: How does ECX2221 affect the glass transition temperature (Tg) and mechanical properties of the cured epoxy network?
A: When properly formulated and cured, ECX2221 enables high crosslink density, resulting in cured systems with elevated Tg, good hardness, and excellent chemical resistance — particularly against solvents and alkaline environments — without excessive brittleness.
Q4: What handling and storage precautions are recommended for Baxxodur ECX2221?
A: Store in tightly sealed original containers under dry, cool conditions (below 30 °C) and protect from moisture and prolonged exposure to air. Use appropriate personal protective equipment (PPE), including nitrile gloves and eye protection, as with all amine-based curing agents.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
