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Desmodur® 3133

A mixture of modified diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality used for the production of the flexible polyurethane cold-curing HR molded foam for automotive seating. At room temperature the product is a blownish black liquid.NCO Content ca. 32.5 %

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Material

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General Characterization

Desmodur® 3133 is a mixture of modified diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality used for the production of the flexible polyurethane cold-curing HR molded foam for automotive seating.At room temperature the product is a blownish black liquid.

Storage Conditions

Recommended storage temperature (°C): 20~40
Shelf life (ex works)
4 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

Sampling

Moisture access must be prevented when taking product samples.

Packaging Type

Drums

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Specific gravity at 25 °C DIN 51757 g/cm³ approx. 1.21

Specifications

Property Name Test Method Unit Value
NCO content MDI-01-01 % by wt. 32.5 ± 0.5
NCO content MDI-01-01 % by wt. 32.5 ± 0.5
Acidity MDI-01-03 mg/kg ≤ 300
Viscosity 25 °C MDI-01-02 mPa*s 25 ± 10
Viscosity 25 °C MDI-01-02 mPa*s 25 ± 10
Acidity MDI-01-03 mg/kg ≤ 300

Downloads

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

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