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Low-viscosity liquid formulation enabling easy handling and efficient mixing with epoxy resins.
Extended pot life at ambient temperature, supporting larger batch processing and improved application window.
Excellent adhesion to diverse substrates including steel, concrete, and composite surfaces.
Good chemical resistance post-cure, particularly against alkalis, solvents, and mild acids.
Reduced exotherm compared to conventional aliphatic amines, enhancing safety in thick-section casting.
High-performance industrial flooring systems for warehouses and manufacturing facilities.
Structural adhesive formulations requiring toughness and thermal stability.
Concrete repair mortars and grouts demanding rapid strength development and low shrinkage.
Composite matrix resins for wind turbine blade bonding and aerospace secondary structures.
Electrical encapsulation and potting compounds where dielectric integrity and moisture resistance are critical.
| Chemical Type | Epoxy-modified aliphatic amine |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Density (25°C) | ~0.96–0.98 g/cm³ |
| Viscosity (25°C) | ~250–400 mPa·s |
| Amine Value | ~240–270 mg KOH/g |
| Reactive Amine Hydrogen Equivalent Weight | ~190–210 g/eq |
| Primary Applications | Industrial coatings, structural adhesives, concrete repair, composites |
Q1: What is the primary function of Aradur 3225 in epoxy systems?
A: Aradur 3225 is an epoxy-modified amine curing agent designed to provide enhanced compatibility, reduced volatility, and improved handling safety compared to conventional aliphatic amines—while delivering good mechanical properties and chemical resistance in cured epoxy networks.
Q2: Is Aradur 3225 suitable for ambient-cure applications?
A: Yes, Aradur 3225 is formulated for ambient-temperature cure of epoxy resins, offering practical pot life and reasonable gel times under typical workshop conditions—making it well-suited for coatings, adhesives, and repair mortars where oven curing is not feasible.
Q3: How does Aradur 3225 compare to standard aliphatic amine hardeners in terms of odor and skin irritation?
A: Due to its epoxy modification, Aradur 3225 exhibits significantly lower volatility and amine odor, and generally presents reduced dermal sensitization potential compared to unmodified aliphatic amines—supporting safer handling in industrial environments.
Q4: What types of epoxy resins is Aradur 3225 typically compatible with?
A: Aradur 3225 demonstrates broad compatibility with standard liquid and solid bisphenol-A and bisphenol-F based epoxy resins, as well as many novolac epoxies—enabling use across protective coatings, flooring systems, and structural composites.
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E-mail: wangxingqiang@ericwchem.com
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