• Coatings, paints & inks

Desmodur® VL 51

Aromatic polyisocyanate based on diphenylmethane diisocyanate.

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Product Types

No data available


Coatings, paints & inks
Flexible, Elastic

General Characterization

Aromatic polyisocyanate based on diphenylmethane diisocyanate.
As a raw material in the formulation of self-levelling two-component polyurethane coatings and sealing compounds as well as solvent-free two-component polyurethane primers. Also as a component in the formulation of prepolymers.

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 higher temperatures may result in an increase in viscosity and at lower temperatures in the formation of crystalline deposits.


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Packaging Type

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Technical Properties & Datasheets


Property Name Test Method Unit Value
Equivalent weight approx. 129
Density at 20°C DIN EN ISO 2811-3 g/ml approx. 1.22
Flash point DIN EN ISO 2719 °C approx. 190


Property Name Test Method Unit Value
NCO MDI-01-01 % 32.5 ± 0.8
Acidity (HCI) MDI-01-03 mg/kg ≤ 200
Viscosity at 25 °C MDI-01-02 mPa*s 21.0 ± 5


Technical Data Sheet
Safety Data Sheet
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