Crelan® UI, Flakes

Blocked cycloaliphatic polyisocyanate.Hardener for polyurethane powder coatings

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Product Types

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General Characterization

Crelan UI, Flakes is a blocked cycloaliphatic polyisocyanate.
It is suitable as a hardener for polyurethane powder coatings.

Storage Conditions

Crelan UI, Flakes 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 -5 to 40°C.


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Packaging Type

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Technical Properties & Datasheets


Property Name Test Method Unit Value
Monomeric diisocyanate content % < 0.1
Total NCO content % approx. 11.5


Property Name Test Method Unit Value
Glass transition temperature °C ≥ 60
Hazen color value 50% in butanone max. 150
Non-blocked NCO content % max. 1.5


Technical Data Sheet
Safety Data Sheet
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