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Waterborne polyamide-based curing agent enabling low-VOC, environmentally compliant epoxy formulations.
Excellent compatibility with waterborne epoxy resins for stable dispersions and consistent film formation.
Provides balanced pot life and rapid ambient-cure performance without forced drying.
Delivers high crosslink density, resulting in superior chemical resistance and mechanical durability.
Low odor and non-hazardous classification supports safe handling and regulatory compliance (e.g., EPA Safer Choice eligible).
Industrial maintenance coatings for steel infrastructure and equipment.
Waterborne epoxy primers and intermediate coats in marine and offshore protective systems.
High-performance floor coatings for warehouses, garages, and pharmaceutical cleanrooms.
Concrete repair mortars and bonding agents requiring low-emission, fast-return-to-service properties.
Eco-friendly metal primers for automotive and general industrial OEM applications.
| Chemical Type | Polyamide adduct, water-dispersible |
| Product Form | Opaque white to off-white liquid |
| Appearance | Homogeneous aqueous dispersion |
| pH (10% aqueous solution) | 7.5 – 8.5 |
| Solids Content (wt%) | 48 – 52 |
| Viscosity (mPa·s, 25°C, Brookfield RVT, Spindle #3, 20 rpm) | 2,000 – 4,000 |
| Density (g/cm³, 25°C) | 1.02 – 1.06 |
| Freezing Point | Approx. 0°C |
Q1: What types of epoxy resins is EPIKURE 8538-Y-68 compatible with?
A: EPIKURE 8538-Y-68 is specifically designed for use with waterborne epoxy dispersions and certain hydrophilically modified solid or liquid epoxy resins. It performs best with bisphenol-A and bisphenol-F based epoxy dispersions formulated for low-VOC, high-performance coatings.
Q2: How does EPIKURE 8538-Y-68 contribute to film formation and cure performance in ambient-cure systems?
A: As a waterborne polyamine curing agent, it enables coalescence-assisted film formation and provides good ambient-temperature reactivity without requiring forced drying. Final properties such as hardness development, chemical resistance, and adhesion evolve gradually over several days, depending on humidity, temperature, and film thickness.
Q3: Can EPIKURE 8538-Y-68 be used in food-contact or potable water applications?
A: EPIKURE 8538-Y-68 is not pre-approved for direct food-contact or potable water applications. Formulators must conduct full regulatory evaluation—including migration testing and compliance verification—based on the final cured coating system and its intended use environment.
Q4: What are typical storage and handling requirements for this product?
A: Store in original sealed containers at temperatures between 5 °C and 30 °C, away from freezing and excessive heat. Protect from moisture ingress during handling, and avoid prolonged exposure to ambient humidity when dispensing. Ensure adequate ventilation in storage and mixing areas due to its amine character.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
