• Adhesives
  • Coatings

Desmodur® E 23

Aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI).

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Product Types

  • PIC
  • MDI
  • Prepolymer
  • Crosslinkers
  • Polyisocyanate
  • Hardeners
  • Isocyanate
  • Reactive system


Moisture resistant, Fast bonding, Solvent-free
Solvent-free, Hard

General Characterization

Aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI).

As a binder for the formulation of moisture-curing, one-component coatings and adhesives.

As a hardener for hydroxyl-bearing co-reactants.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 25 °C

- Protect from moisture, heat and foreign material.

General information: 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.


No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
NCO content M105-ISO 11909 % 15.4 ± 0.4
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 1,800 ± 250

Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2118 g/cm3 approx. 1.13
Equivalent weight 266 - 280
Equivalent weight 266 - 280
Flash point DIN EN ISO 2719 °C > 193


Technical Data Sheet
Safety Data Sheet
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