• Coatings, paints & inks

Desmodur® E 1660

Aromatic polyisocyanate prepolymer based on toluene diisocyanate.

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Product Types

  • PIC
  • Prepolymer
  • Isocyanate
  • Reactive system
  • Polyisocyanate


Coatings, paints & inks
Flexible, Elastic

General Characterization

Aromatic polyisocyanate prepolymer based on toluene diisocyanate.
In the formulation of fast-drying, moisturecuring one-component polyurethane coatings and as the hardener for two-component polyurethane coatings.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 10 - 30 °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 results in increased viscosity.


No data available

Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
Flash point DIN EN ISO 2719 °C approx. 28
Equivalent weight approx. 792
Density at 20 °C DIN EN ISO 2811 g/ml approx. 1.06


Property Name Test Method Unit Value
Monomeric TDI DIN EN ISO 10 283 % < 0.5
Viscosity at 23 °C DIN EN ISO 3219/A.3 mPa*s 1,600 ± 800
NCO content DIN EN ISO 11 909 % 5.3 ± 0.3
Non-volatile content DIN ISO 3251 % 60.0 ± 2.0


Technical Data Sheet
Safety Data Sheet
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