Desmodur® DN

Hydrophilic aliphatic HDI-polyisocyanate. Emulsifiable in aqueous polymer and synthetic rubber dispersions. Raises the resistance of bonds to heat, water and plasticizers.

Contact an Expert
Market Switch
Selection will influence the results you get.
Copied to clipboard


Product Types

No data available


No data available

General Characterization

Aliphatic polyisocyanate of low volatility.
Desmodur® DN is a solvent-free liquid polyisocyanate that is emulsifiable in water. Any occasional turbidity or precipitation visible is caused by very small amounts of processing aids These have no adverse effect on the processing and final properties of the cured adhesives. It can be used as the crosslinker for largely pH-neutral aqueous polymer dispersions including polyurethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersions. Crosslinking increases the resistance of the bonds to heat, water, plasticisers and many solvents. Compared with Desmodur® DA, Desmodur® DN is characterised by its much lower viscosity and is not prone to turbidity at low storage temperatures.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 30 °C.

- Protect from moisture, heat and foreign material.

General information: The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.


No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
NCO content DIN EN ISO 11 909, Annex A % 21.8 ± 0.5
Viscosity at 23 °C, Rotation DIN EN ISO 3219/A.3 mPa*s 1,250 ± 300
HDI monomer content DIN EN ISO 10283 % ≤ 0.25

Property Name Test Method Unit Value
Density at 20 °C DIN 51 757 g/cm3 approx. 1.15
Flash point DIN 51 755 °C approx. 218
Solids content % 100


Technical Data Sheet
Safety Data Sheet
No direct download available, please visit

Related topics

Do you want to know more about Desmodur® DN?
Get in touch with our experts!

Contact form image Zoe

How can we contact you?

* Mandatory Fields