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Fast-reacting aliphatic amine-based curing agent for ambient and low-temperature cure profiles.
Excellent compatibility with standard epoxy resins, enabling uniform crosslinking without phase separation.
Low viscosity (250–350 mPa·s at 25°C) ensures easy metering, mixing, and air-release during processing.
Low volatility and non-crystallizing formulation enhances shelf stability and handling safety.
Delivers high glass transition temperature (Tg > 85°C) and superior chemical resistance in cured networks.
Structural adhesives for automotive and aerospace bonding assemblies.
Electrical encapsulants and potting compounds requiring rapid throughput and thermal reliability.
High-performance coating systems for industrial flooring and protective linings.
Composite matrix resins in wind blade and marine applications.
Repair mortars and grouts where fast strength development is critical.
| Chemical Type | Aliphatic polyamine adduct |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Density (25°C) | 0.92–0.95 g/cm³ |
| Amine Value | 210–230 mg KOH/g |
| Viscosity (25°C) | 250–350 mPa·s |
| Primary Applications | Epoxy resin curing for adhesives, coatings, composites, and encapsulants |
| Key Features | Ambient-cure capability, low exotherm, good flexibility retention |
Q1: What types of resins is HDX-50E compatible with?
A: HDX-50E is specifically formulated for use with epoxy resins, including liquid bisphenol-A and bisphenol-F types, as well as certain novolac and cycloaliphatic epoxies. Compatibility should be confirmed via small-scale formulation testing under intended processing conditions.
Q2: How does HDX-50E affect pot life and cure speed compared to conventional amine curing agents?
A: HDX-50E offers a balanced reactivity profile—providing extended pot life at ambient temperature while enabling efficient thermal cure at moderate elevated temperatures (typically 80–120 °C). It avoids the rapid exotherm often seen with highly reactive aliphatic amines, supporting improved process control in casting and encapsulation applications.
Q3: Is HDX-50E suitable for applications requiring low volatility and reduced odor?
A: Yes. HDX-50E is a low-volatility, non-yellowing curing agent designed to minimize workplace exposure concerns and odor impact during handling and processing—making it appropriate for indoor or enclosed manufacturing environments where air quality and operator comfort are priorities.
Q4: Does HDX-50E require post-cure to achieve optimal mechanical or chemical resistance properties?
A: While HDX-50E can achieve functional crosslink density with a standard thermal cure cycle, a controlled post-cure step (e.g., 2–4 hours at 100–130 °C) is generally recommended to maximize long-term thermal stability, moisture resistance, and mechanical performance—particularly in demanding industrial or electrical insulation applications.
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