• Adhesives

Desmodur® I

Monomeric cycloaliphatic diisocyanate. In the manufacture of polyisocyanates and polyurethanes.

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Product Types

  • Aliphatic polyisocyanate
  • Isocyanate



General Characterization

Desmodur I is a monomeric cycloaliphatic diisocyanate.
It is suitable for use in the manufacture of polyisocyanates and polyurethanes.
It is also known as 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate or isophorone diisocyanate (IPDI).

Storage Conditions

Desmodur I 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 0º-30ºC.


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Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
Density at 20°C g/ml approx. 1.06
Viscosity at 25°C mPa∙s approx. 10
Flash point °C approx. 150
Vapor pressure at 25°C hPa approx. 1.2 x 10^-3


Property Name Test Method Unit Value
NCO content (calculated from GC) % ≥ 37.5
Total chlorides mg/kg ≤ 200
Hazen color value ≤ 30
Hydrolyzable chlorides mg/kg ≤ 160
Assay (GC) % ≥ 99.5


Technical Data Sheet
Safety Data Sheet
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