Desmodur® E 23 A

Aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI).

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General Characterization

Desmodur E 23 A is an aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI).
It is suitable as a binder for the formulation of moisture-curing, one-component coatings and adhesives.
It is also suitable as a hardener for hydroxyl-bearing co-reactants.

Storage Conditions

Desmodur E 23 A should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is sensitive to moisture and should therefore be stored in its sealed original containers. Storage at high temperatures will lead to an increase in viscosity and a reduction of the NCO content. Recommended storage temperature is 18o - 30oC.


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Technical Properties & Datasheets


Property Name Test Method Unit Value
Flash point °C > 193
Equivalent weight 247 - 263
Density at 20°C g/cm^3 approx. 1.13


Property Name Test Method Unit Value
Viscosity at 25°C mPa∙s ≤ 1,600
NCO content % 16 - 17


Technical Data Sheet
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