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Crelan® NW 5

Blocked cycloaliphatic polyisocyanate. Hardener for polyurethane powder coatings.

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Product Types

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Material

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General Characterization

Crelan NW 5 is a blocked cycloaliphatic polyisocyanate.
It is suitable as a hardener for polyurethane powder coatings.

Storage Conditions

Crelan NW 5 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 agglomeration of the product. This agglomeration is reversible by mechanical stress without adversely affecting the quality of the product. Recommended storage temperature is -5º-40ºC.

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Monomeric diisocyanate content % < 0.5
Equivalent weight approx. 333
Total NCO content % approx. 12.7

Specifications

Property Name Test Method Unit Value
Non-blocked NCO content % ≤ 1.5
Viscosity (55% in Toluene) at 23°C mPa∙s 100 - 250
Hazen color value 55% in toluene < 100
Glass transition temperature °C 48 - 58

Downloads

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

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