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

Zeneida SC-5521 Hardener

Zeneida SC-5521 Hardener is a high-performance aliphatic polyamine curing agent from Zeneida’s SC-Series, engineered for rapid cure, excellent chemical resistance, and low viscosity in epoxy systems. Ideal for industrial coatings, adhesives, and composites requiring superior toughness and UV stability without amine blush.
  • zeneida sc 5521 hardener_87446325
  • zeneida sc 5521 hardener_87446325

Features Of Zeneida SC-5521 Hardener

  1. Fast-reacting aliphatic amine hardener for ambient and low-temperature curing of epoxy resins.

  2. Low viscosity and excellent compatibility with standard DGEBA and modified epoxy systems.

  3. Provides outstanding chemical resistance, particularly to alkalis and solvents, after full cure.

  4. Non-blushing formulation ensures superior surface aesthetics and intercoat adhesion in multi-layer systems.

  5. Low volatility and reduced skin sensitization potential compared to conventional aromatic amines.

Typical Applications Of Zeneida SC-5521 Hardener

  1. High-performance industrial flooring and concrete coatings.

  2. Chemical-resistant linings for tanks, bunds, and secondary containment structures.

  3. Structural adhesive formulations for metal and composite bonding.

  4. Electrical encapsulation and potting compounds requiring rapid demold times.

  5. Marine and offshore protective coatings exposed to humid and saline environments.

Specifications Of Zeneida SC-5521 Hardener

Chemical TypeAliphatic polyamine adduct
Product FormLiquid
AppearancePale yellow to amber clear liquid
Viscosity (25°C)250–400 mPa·s
Density (25°C)0.92–0.96 g/cm³
Amine Value380–420 mg KOH/g
Reactivity (with DGEBA, 25°C)Gel time: 35–55 min; Tack-free time: ~2.5–4 hrs
Primary ApplicationsEpoxy coating, adhesive, and composite systems


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