Description
General Properties and Applications
The material is a high functionality polymeric diphenyl methane diisocyanate (MDI). 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 28.80 - 31.00 % by wt. MDI-01-01
Viscosity at 25 °C 500.0 - 800.0 mPa·s MDI-01-02
Acidity (HCL) 115 mg/kg MDI-01-03
* Lengthy storage can lead to an increase in the viscosity of Desmodur ® 44V20L, although in our experience this has no adverse effect on the processing properties of the product.
Other Data*
Property Value Unit of measurement Method
Density at 20 °C approx. 1.23-1.25 g/cm³ DIN 51757
Hydrolysable chlorine <2000 ppm
Flash Point 232 °C Cleveland Cup, ASTM method D92
Fire point 248 °C Cleveland Cup, ASTM method D92* These values provide general information and are not part of the product specification
Packaging
Drums, IBCs, tank containers and tank wagons.
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