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

HDX-50B Curing Agent

HDX-50B Curing Agent is a high-performance aliphatic amine-based epoxy hardener from the HDX Series by Hangzhou Hengda Chemical. Designed for rapid cure, low viscosity, and excellent chemical resistance, it delivers superior adhesion and mechanical strength in coatings, adhesives, and composites—ideal for demanding industrial applications requiring fast turnaround and durability.
  • hdx 50b curing agent_0676c3d5
  • hdx 50b curing agent_0676c3d5

Features Of HDX-50B Curing Agent

  1. Fast-reacting aliphatic amine-based curing agent for room-temperature and elevated-temperature epoxy systems.

  2. Low viscosity (< 300 cP at 25°C) ensures excellent mixing efficiency and reduced entrapped air in formulated resins.

  3. Superior chemical resistance post-cure, especially to alkalis, solvents, and mild acids.

  4. Low volatility and non-skin-sensitizing formulation—meets current occupational health and safety guidelines for handling.

  5. Enables high glass transition temperature (Tg > 110°C) in cured epoxy networks without post-bake.

Typical Applications Of HDX-50B Curing Agent

  1. Structural adhesives for aerospace composite bonding and metal-to-composite assembly.

  2. High-performance protective coatings for offshore platforms and chemical processing equipment.

  3. Electrical encapsulants and potting compounds requiring thermal stability and dielectric integrity.

  4. Wind turbine blade root joint adhesives and shear web bonding systems.

  5. Repair mortars and grouts for industrial concrete rehabilitation under ambient conditions.

Specifications Of HDX-50B Curing Agent

Chemical TypeAliphatic polyamine adduct
Product FormLiquid
AppearancePale yellow clear liquid
Specific Gravity (25°C)0.94–0.96 g/cm³
Amine Value380–420 mg KOH/g
Viscosity (25°C)220–280 cP
Reactivity with DGEBA EpoxyGel time: 25–35 min at 25°C (100:35 w/w)
Storage Stability≥12 months in sealed container at <30°C


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