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Desmodur® ultra N 3689 SN

Aliphatic polyisocyanate based on hexamethylene diisocyanate. Hardener component for weather resistant PUR-coatings.

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About

Product Types

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Material

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General Characterization

Aliphatic polyisocyanate based on hexamethylene diisocyanate.
Hardener component for weather resistant PUR-coatings.

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

Property Name Test Method Unit Value
Color value (Hazen) M017-EN 1557 ≤ 60
NCO content M105-ISO 11909 % 20.3 ± 0.5
Monomeric HDI M106-ISO 10283 % < 0.10
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 325 ± 75
Non-volatile content (2.2 g/120 min/100 °C) M020-ISO 3251 % 88.5 ± 1

Property Name Test Method Unit Value
Flash point DIN EN ISO 2719/A °C approx. 58
Density at 20 °C DIN 51757 g/cm3 1.12
Equivalent weight approx. 207

Downloads

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