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Low-viscosity liquid formulation for excellent mixability with standard epoxy resins.
Fast-reacting aliphatic amine chemistry enabling rapid room-temperature cure.
Low volatility and reduced amine odor, enhancing workplace safety and handling comfort.
Superior adhesion to metals, composites, and concrete substrates.
Good chemical resistance post-cure, particularly against moisture and mild alkalis.
Structural adhesives for automotive assembly and lightweight vehicle components.
Electrical encapsulation and potting compounds in power electronics and LED modules.
Repair mortars and high-strength grouts for industrial flooring and concrete rehabilitation.
Composite matrix systems in wind turbine blade bonding and aerospace secondary structures.
Coating binders for corrosion-resistant industrial maintenance coatings.
| Chemical Type | Aliphatic amine adduct |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Density (25°C) | 0.92–0.96 g/cm³ |
| Viscosity (25°C) | 180–240 mPa·s |
| Amine Value | 380–420 mg KOH/g |
| Reactivity Profile | Room-temperature curing with accelerated cure at elevated temperatures |
| Primary Applications | Adhesives, potting, grouts, and structural coatings |
Q1: What is the primary chemical class of BE188EL?
A: BE188EL is an aliphatic amine-based epoxy curing agent, designed to provide balanced reactivity, low volatility, and good compatibility with standard bisphenol-A and bisphenol-F epoxy resins.
Q2: Is BE188EL suitable for ambient-cure applications?
A: Yes — BE188EL is formulated for efficient ambient-temperature curing, delivering practical handling time and reliable crosslink development without forced heat, making it well-suited for coatings, adhesives, and repair compounds where thermal processing is impractical.
Q3: How does BE188EL compare to conventional DETA or DEEDA in terms of odor and skin sensitization risk?
A: BE188EL exhibits significantly lower volatility and reduced amine odor compared to traditional linear aliphatic amines. Its modified molecular structure also contributes to lower dermal sensitization potential, supporting safer handling in industrial environments — though appropriate PPE remains essential.
Q4: Can BE188EL be used in high-solids or solvent-free epoxy systems?
A: Yes — BE188EL is fully miscible with common liquid epoxy resins and demonstrates excellent compatibility in high-solids and 100% solids formulations, enabling low-VOC coating and adhesive solutions without compromising pot life or final film properties.
Q5: What is the typical dosage range for BE188EL in standard epoxy formulations?
A: Dosage is formulation-dependent, but BE188EL is typically used at low concentrations relative to resin weight — generally ranging from 0.1% to 2% by weight — to achieve full cure while maintaining optimal mechanical performance and shelf stability.
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E-mail: wangxingqiang@ericwchem.com
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