• Coatings, paints & inks

Crelan® EF 403

Cycloalipatic Polyuretdione without blocking agent. Hardener for polyurethane powder coatings

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Product Types

  • Crosslinkers
  • Hardeners


Coatings, paints & inks
Solvent-free, Weather resistant

General Characterization

Cycloaliphatic Polyuretdione without blocking agent.
Hardener for polyurethane powder coatings

Storage Conditions

- Storage in original sealed Covestro container.
Additionally, we recommend to avoid piling up the pallets.

- Recommended storage temperature: - 5 to 30 °C.

- Protect from moisture, heat and foreign material.

General information: 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.


No data available

Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
Non-blocked NCO-content DIN EN ISO 11 909 % max. 2.0
Glass transition temperature ISO 11 357 °C 40 - 55
Hazen color value, 10 % in butanone DIN EN 1557 max. 100


Property Name Test Method Unit Value
Equivalent weight approx. 310
NCO content, total % approx. 13.5
Melting range °C approx. 70 - 78


Technical Data Sheet
Safety Data Sheet
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