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Desmodur 44V20 is a liquid, dark brown polymeric isocyanate based on diphenylmethane-4.4′-diisocyanate (MDI) with isomers and homologues of higher functionality. It is used in conjunction with polyols to produce polyurethane.
| Property | Value | Unit of measurement | Method |
| NCO content | 30.5-32.5 | % by wt. | MDI-01-01 |
| Viscosity 25 °C*) | 160-240 | mP·s | MDI-01-02 |
| Acidity | max.200 | mg/kg | MDI-01-03 |
| *) Lengthy storage can lead to an increase in the viscosity of Desmodur® 44V20 L, although in our experience this has no adverse effect on the processing properties of the product. | |||
| Property | Value | Unit of measurement | Method |
| Density 20 °C | approx. 1.23 | g/cm* | DIN 51757 |
| Phenylisocyanate content | max.50 | ppm | MDI-01-09 |
| Coefficient of thermal expansion | 6.59.10-4 | K-1 | |
| Specific heat (cp) | approx. 1.51 | kJ/kgK |
Recommended storage temperature: + 10 to + 30 °C (in exceptional cases up to 50°C)
Storage stability (ex works): 6 months if stored in moisture-tight drums
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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