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High reactivity with epoxy resins at ambient and elevated temperatures.
Excellent chemical resistance in cured epoxy systems, including acids and solvents.
Low volatility and low odor profile, supporting safer handling and improved workplace air quality.
Good compatibility with standard bisphenol-A and bisphenol-F epoxy resins.
Enables formulation of rigid, high-glass-transition (Tg) thermoset networks.
Electrical encapsulation and potting compounds for power electronics.
Structural adhesives in automotive and aerospace composite bonding.
High-performance coatings for industrial flooring and tank linings.
Wind turbine blade matrix resins requiring thermal and mechanical durability.
Tooling and mold-making materials for composite manufacturing.
| Chemical Type | Aromatic amine-based curing agent |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Primary Applications | Epoxy resin curing for composites, adhesives, and coatings |
| Key Features | Ambient-cure capable, high Tg promoter, low viscosity |
| Benefits | Improved mechanical strength, reduced post-cure requirements, enhanced moisture resistance |
| Storage Condition | Store in tightly closed containers at 10–30°C, protect from moisture |
| Shelf Life | 12 months from date of manufacture under recommended storage conditions |
Q1: What types of epoxy resins is AK-75 compatible with?
A: AK-75 is formulated for use with standard bisphenol-A and bisphenol-F based liquid and solid epoxy resins, as well as many modified epoxy systems. Compatibility should be verified through small-scale formulation trials due to variations in resin functionality and molecular weight.
Q2: How does AK-75 affect pot life and cure speed compared to conventional amine hardeners?
A: AK-75 offers a balanced reactivity profile—providing extended working time at ambient temperatures while enabling efficient post-cure development of mechanical properties. Its latency allows for improved processing flexibility without requiring aggressive heating during initial mixing or application.
Q3: Is AK-75 suitable for applications requiring low volatility and reduced odor?
A: Yes—AK-75 is a non-volatile, low-odor curing agent designed to support safer handling and improved workplace air quality, particularly beneficial in enclosed or poorly ventilated production environments.
Q4: What is the typical dosage range for AK-75 in epoxy formulations?
A: Dosage is formulation-dependent but generally ranges from 0.1% to 2% by weight relative to the epoxy resin. Optimal levels are determined by balancing cure kinetics, final crosslink density, and performance requirements such as chemical resistance or thermal stability.
Q5: Can AK-75 be used in coatings intended for food-contact surfaces?
A: AK-75 is not pre-approved for direct food-contact applications. Customers considering such use must conduct full regulatory evaluation—including migration testing and compliance verification—according to applicable regional regulations and intended end-use conditions.
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E-mail: wangxingqiang@ericwchem.com
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