• Coatings

Desmodur® XP 2489

Aliphatic polyisocyanate.As the hardener component for lightfast polyurethane coating systems.

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Product Types

  • PIC
  • Crosslinkers
  • Hardeners
  • Aliphatic polyisocyanate
  • Isocyanate
  • Polyisocyanurate
  • Polyisocyanate


Fast curing, Weather resistant, Solventborne, Solvent-free, Hard

General Characterization

Aliphatic polyisocyanate.
As the hardener component for lightfast polyurethane coating systems.

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. 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.


No data available

Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
NCO content M105-ISO 11909 % 21.0 ± 0.5
Monomeric IPDI M106-ISO 10283 % < 0.30
Viscosity at 23 °C M014-ISO 3219/A.3 mPa*s 22,500 ± 2,500
Monomeric HDI M106-ISO 10283 % < 0.18
Color value (Hazen) M017-EN 1557 ≤ 100


Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2811 g/ml approx. 1.16
Equivalent weight approx. 200
Flash point DIN EN 22 719 °C approx. 240


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