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Desmodur® 44V70L

A liquid, dark brown mixture of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It is used in conjunction with polyols to produce moulded polyurethane foams.NCO Content ca. 31 %, Viscosity ca. 680 mPa s@ 25 °C

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About

Product Types

  • MDI
  • Aromatic polyisocyanate

Material

No data available

General Characterization

Desmodur 44V70L is a liquid, dark brown mixture of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It can be used in conjunction with polyols for the production of polyurethane products.

Storage Conditions

Recommended storage temperature: + 10°C to + 30°C

Storage stability (ex works): 6 months if stored in moisture-tight drums or containers

Sampling

Exposure to moisture must be prevented when taking product samples

Packaging Type

Drums, IBCs, tank containers and tank wagons

Technical Properties & Datasheets

Property Name Test Method Unit Value
Phenylisocyanate content MDI-01-09 ppm max. 50
Specific heat (cp) kJ/kgK ca. 1.51
Coefficient of thermal expansion K-1 6.59 . 10-4
Density 20 °C DIN 51757 g/cm³ approx. 1.23

Property Name Test Method Unit Value
Acidity MDI-01-03 ppm HCI max. 500
Viscosity 25 °C*) MDI-01-02 mPa*s 610 - 750
NCO content MDI-01-01 % by wt. 30.5 - 32.0

Downloads

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