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Low-viscosity liquid enabling excellent processability and easy handling in standard epoxy formulation equipment.
Fast-reacting aliphatic amine-based chemistry delivering rapid cure at ambient and elevated temperatures.
Excellent chemical resistance post-cure, particularly against solvents, alkalis, and mild acids.
Low volatility and low skin sensitization potential, supporting safer industrial handling and compliance with occupational health guidelines.
Good compatibility with common diglycidyl ether of bisphenol-A (DGEBA) and cycloaliphatic epoxy resins.
Structural adhesives for automotive and transportation assembly.
High-performance protective coatings for industrial flooring and tank linings.
Electrical encapsulation and potting compounds requiring fast turnaround and high dielectric strength.
Composite matrix resins for wind turbine blade bonding and repair systems.
Repair mortars and grouts where rapid strength development and moisture tolerance are critical.
| Chemical Type | Aliphatic polyamine |
| Product Form | Liquid |
| Appearance | Pale yellow to colorless clear liquid |
| Primary Applications | Adhesives, coatings, composites, encapsulants |
| Key Features | Ambient-cure capability, low viscosity, low odor |
| Benefits | Reduced processing time, improved worker safety, enhanced interfacial adhesion |
| Storage Stability | ≥12 months at 20–25°C in sealed original packaging |
| Reactivity Profile | Exothermic peak temperature: ~80–95°C (by DSC, 10°C/min) |
Q1: What is the primary chemical class of Evonik Epoxy Curing Agent 2337S?
A: Evonik Epoxy Curing Agent 2337S is a modified aliphatic amine-based curing agent, specifically engineered to provide balanced reactivity, low volatility, and reduced skin sensitization potential compared to conventional amines.
Q2: Is 2337S suitable for use in coatings requiring low-temperature cure performance?
A: Yes — 2337S is formulated to enable effective epoxy curing at ambient and moderately low temperatures (down to approximately 10 °C), making it well-suited for industrial maintenance coatings and field-applied systems where heated ovens are not available.
Q3: How does 2337S compare to standard DETA or DEEDA in terms of handling safety?
A: 2337S exhibits significantly lower vapor pressure and reduced dermal irritation potential versus traditional aliphatic amines. It is supplied as a viscous liquid with minimized volatility, supporting safer handling and improved workplace exposure profiles when used with appropriate engineering controls and PPE.
Q4: Can 2337S be used in high-solids or solvent-free epoxy formulations?
A: Yes — its low viscosity and compatibility with common epoxy resins (e.g., DGEBA types) allow it to be readily incorporated into high-solids, low-VOC, and 100% solids epoxy systems without compromising pot life or film formation.
Q5: What is the typical dosage range for 2337S in standard epoxy formulations?
A: The recommended dosage generally ranges from 0.1% to 2% by weight relative to the epoxy resin, depending on the desired balance of pot life, cure speed, and final mechanical properties. Exact levels should be optimized through small-scale formulation trials under intended processing conditions.
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