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Desmodur® U N3390BA/SN

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

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Product Types

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Material

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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.

Sampling

No data available

Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Equivalent weight approx. 214
Viscosity at 25 °C M014-ISO 3219/A.3 mPa*s approx. 500
Density at 20 °C DIN EN ISO 2811 g/ml approx. 1.13
Flash point DIN 53213 °C approx. 50

Specifications

Property Name Test Method Unit Value
Monomeric HDI M106-ISO 10283 % < 0.10
Non-volatile content 2.2 g / 120 min / 100 °C M020-ISO 3251 % 90 ± 1
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 550 ± 150
NCO content M105-ISO 11909 % 19.6 ± 0.3
Color value (Hazen) M017-EN 1557 ≤ 40

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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