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Desmodur® Z 4470 SN

Aliphatic polyisocyanate (IPDI trimer). As the hardener component for lightfast polyurethane coating systems and as an additive resin for alkyd spray coatings.

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General Characterization

Desmodur Z 4470 SN is an aliphatic polyisocyanate (IPDI trimer).
It is suitable for use as the hardener component for lightfast polyurethane coating systems and as an additive resin for alkyd spray coatings.

Storage Conditions

Desmodur Z 4470 SN should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. 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. Recommended storage temperature is 0º-30ºC.

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Flash point °C approx. 45
Viscosity at 23°C mPa∙s approx. 2,000
Density at 20°C g/ml approx. 1.05
Equivalent weight approx. 360

Specifications

Property Name Test Method Unit Value
Hazen color value ≤ 60
NCO content % 11.9 ± 0.4
Non-volatile content (0.2 g/1 h/120^oC) % 70 ± 2
Monomeric IPDI % < 0.35
Viscosity at 25°C mPa∙s 1,600 ± 500

Downloads

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

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