Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Handa HDH6381 Waterborne Epoxy Curing Agent

Handa HDH6381 is a waterborne epoxy curing agent from Handa’s HDH series, offering low VOC, excellent compatibility with water-based epoxy resins, rapid cure at ambient temperature, superior adhesion to concrete/metal, and outstanding chemical resistance—ideal for eco-friendly industrial coatings and flooring systems.
  • handa hdh6381 waterborne epoxy curing agent_960b7b80
  • handa hdh6381 waterborne epoxy curing agent_960b7b80

Features Of Handa HDH6381 Waterborne Epoxy Curing Agent

  1. Low-VOC, water-based formulation compliant with stringent environmental regulations including EU REACH and US EPA guidelines.

  2. Excellent compatibility with standard waterborne epoxy resins, enabling stable one-component or two-component systems.

  3. Fast ambient-cure capability with full hardness development within 24–48 hours at 25°C and 60% RH.

  4. Superior adhesion to steel, concrete, and galvanized substrates without primer requirement in many industrial applications.

  5. Outstanding chemical resistance to alkalis, salts, and mild solvents after full cure.

Typical Applications Of Handa HDH6381 Waterborne Epoxy Curing Agent

  1. Waterborne epoxy primers and intermediate coats for marine and offshore steel structures.

  2. High-performance flooring systems in food processing, pharmaceutical, and cleanroom facilities.

  3. Protective coatings for potable water storage tanks and pipelines (NSF/ANSI 61 compliant when formulated accordingly).

  4. Anti-corrosive coatings for bridges, power plants, and wastewater treatment infrastructure.

  5. Industrial maintenance coatings requiring rapid return-to-service and low odor during application.

Specifications Of Handa HDH6381 Waterborne Epoxy Curing Agent

Chemical TypePolyamide-modified polyamine dispersion
Product FormOpaque aqueous dispersion
AppearanceOff-white to light beige liquid
pH (25°C)8.2–8.8
Non-Volatile Content (wt%)52–56%
Viscosity (Brookfield RVT, #3 spindle, 20 rpm, 25°C)1,800–2,500 mPa·s
Specific Gravity (25°C)1.02–1.05
Storage Stability≥12 months at 5–30°C in sealed original container


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