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Desmodur® ultra N 3900

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About

Product Types

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Material

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General Characterization

Low-viscosity, aliphatic polyisocyanate resin based on hexamethylene diisocyanate.
As the hardener for weather-stable 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. 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.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Flash point DIN EN 22 719 °C approx. 203
Equivalent weight approx. 179
Density DIN EN ISO 2811 g/cm3 approx. 1.15

Specifications

Property Name Test Method Unit Value
Hazen color value M017-EN 1557 ≤ 40
Monomeric HDI M106-ISO 10283 % < 0.10
NCO content M105-ISO 11909 % by wt. 23.5 ± 0.5
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 730 ± 100

Downloads

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

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