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Product Types

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Material

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General Characterization

DESMODUR VP.PU 60RE70 is a mixture of 4,4'-, 2,4'- and 2,2'-diphenylmethane diisocyanat with a relatively high content of 2,4'-isomers.
It can be used in combination with polyols for production of polyurethanes.

Storage Conditions

Recommended storage temperature: 20 - 35 °C
Storage stability (ex works): 6 months if stored in moisture-tight drums

Storage for long periods at temperatures below 20 °C or above 35 °C leads to a deterioration in quality.

At temperatures below 20 °C starts crystallisation, encouraging the formation of infusible dimers. This makes it impossible to completely melt the product, even if it has been stored for only three weeks.

Storage at temperatures above 35 °C also accelerates the formation of insoluble sediment (dimers).

Freshly crystallised DESMODUR VP.PU 60RE70 must be remelted . In doing so, it is important to ensure that the entire contents of the drum are melted and homogenised.

The drum should then be kept sealed at the standard storage temperature
(20 to 35 °C).

Sampling

Exposure to moisture must be prevented when taking product samples.

Packaging Type

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Technical Properties & Datasheets

Specifications

Property Name Test Method Unit Value
Viscosity at 25 °C MDI-01-02 mPa*s 8 - 15
NCO-content MDI-01-01 % by wt. 32.9 - 33.3
2,4'-MDI content MDI-01-06 % by wt. 28.0 - 32.0
2,4'-MDI content MDI-01-06 % by wt. 28.0 - 32.0
Viscosity at 25 °C MDI-01-02 mPa*s 8 - 15
NCO-content MDI-01-01 % by wt. 32.9 - 33.3

Downloads

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

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