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Desmodur® 70WF64 - for flexible moulded foams

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Product Types

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Material

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General Characterization

Desmodur 70WF64 is a mixture of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality used for the production of flexible polyurethane cold-curing HR molded foam for automotive seating.

Storage Conditions

Recommended storage temperature (°C): 20 - 40
Shelf life (ex works)
6 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the nature of the product.
Recommended temperature for processing (°C): 20 - 25
Lengthy storage leads to an increase in viscosity of Desmodur® 70WF64, although in our experience this has no adverse effect on processing.

Sampling

Moisture access must be prevented when taking product samples.

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Appearance DIN ISO 6271 brownish black liquid
Density 25 °C DIN 51757 g/cm³ approx. 1.24

Property Name Test Method Unit Value
Viscosity 25 °C MDI-01-02 mPa*s 15 - 35
Viscosity 25 °C MDI-01-02 mPa*s 15 - 35
NCO content MDI-01-01 % by wt. 32.0 - 33.0
Acidity MDI-01-03 ppm ≤ 150
Acidity MDI-01-03 ppm ≤ 150
NCO content MDI-01-01 % by wt. 32.0 - 33.0

Downloads

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