DKSH Curing agents

Technical datasheet

ITAMID FL521/S

Supplied byDKSH- Last Updated on Feb 10, 2026

ITAMID FL521/S distributed by DKSH is a formulated low viscosity polyamidoamine adduct, serving as a curing agent in epoxy formulations.
  • As the bisphenol-A free alternative to ITAMID FL520/S, it ensures excellent adhesion and flexibility on diverse substrates, along with good reactivity even at low temperatures.
  • With properties like excellent hardness development and reduced blushing effect, ITAMID FL521/S is ideal for various applications including flooring primers, adhesion promotion, and accelerating epoxy systems.
  • It has a shelf life of 24 months.
  • It is free from Bisphenol-A, EDTA, salicylic acid, nonylphenol, and solvents.
  • It is available in Europe region (Spain, Germany, Portugal, Denmark, Estonia, Finland, Iceland, Latvia, Lithuania, Norway, Sweden).
Chemical Composition:Polyamidoamine Adduct

Documents related to ITAMID FL521/S

No data available

Benefits

Curing & Polymerisation Control|

Solvent-free

Compliance

No data available

Applications

Recommended markets

No data available

For which polymer

Thermosets|
Epoxy & Epoxide Resin

Availability

Product Status:COMMERCIAL
Regional Availability:Western Europe| Central and Eastern Europe

ITAMID FL521/S properties

Other properties

PropertiesValue & unitTest conditionTest method
Amine Hydrogen Equivalent Weight (AHEW)114 g/eq
Amine Number300 mg KOH/gDIN 16945
Color, Gardner4.8 UNI EN ISO 4630-2:2005
Density1.033 g/cm3At 20°CDIN 51757
Gel Time41 min20°C. 150g of mixture with ITAPOX 50 (EEW = 190)
Reactive Substance Content100 %
Refractive Index1.5284 At 20°CISO 280:1998
Viscosity990 mPa-sAt 25°CUNI EN 12092:2003

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