Desmodur® ultra N 3380 BA/SN

Aliphatic polyisocyanate (HDI trimer).

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Product Types

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General Characterization

Aliphatic polyisocyanate (HDI trimer).
As the hardener component for lightfast polyurethane coating systems.

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.


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Packaging Type

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Technical Properties & Datasheets

Property Name Test Method Unit Value
Monomeric HDI DIN EN ISO 10 283 % ≤ 0.15
Color value (Hazen) DIN EN 1557 ≤ 40
NCO content DIN EN ISO 11 909 % 17.4 ± 0.5
Non-volatile content 2.2 g / 120 min / 100 °C DIN EN ISO 3251 % 80 ± 1
Viscosity at 23 °C DIN EN ISO 3219/A.3 mPa*s 150 ± 20

Property Name Test Method Unit Value
Density at 20 °C DIN 53217 g/ml approx. 1.10
Flash point DIN 53 213/1 °C approx. 44
Equivalent weight approx. 241


Technical Data Sheet
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