General Properties and Applications Desmodur ® 44V20L is a dark-brown, liquid blend of diphenylmethane-4,4'-diisocyanate (MDI) with isomer and homologues of
higher functionality. It is used in conjunction with polyols to produce rigid polyurethanes foam.
Sampling
Moisture access must be prevented when taking product samples
| Specification property |
Value |
Unit of measurement |
Method |
| NCO content |
30.50-32.50 |
% by wt. |
MDI-01-01 |
| Viscosity at 25ºC |
160.0-240.0 |
mPa.s |
MDI-01-02 |
| Acidity(HCL) |
≤ 200 |
mg/kg |
MDI-01-03 |
| Other Data Property |
Value |
Unit of measurement |
Method |
| Density at 20ºC |
approx. 1.2.3 |
g/cm3 |
DIN51757 |
| Phenyl Isocyanate content |
≤50 |
ppm |
2011-0489801-95 |
| Specific Heat(cp) |
approx.1.51 |
kJ/kg.K |
|
| Coefficient of thermal expansion |
6.59X10-4 |
K-1 |
|
*These values provide general information and are not part of the product specification
Packaging Drums,IBCs,tank containers and tank wagons
Storage Recommended storage temperature:+10 to +30ºC, storage stability(ex works): 6 months if stored in moisture-tight drums
Audited Supplier 
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