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Desmophen® 1905 A - for flexible slabstock foams

An inactive trifunctional polyether modified with a styrene-acrylonitrile (SAN) polymer. It is specifically designed for the production of conventional flexible slabstock foams with enhanced loadbearing properties. It exhibits a broad processing range and allows the use of most commercially available silicone surfactants and tertiary amine catalysts. Hydroxyl Number ca. 43 mg KOH/g

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About

Product Types

  • Polyol

Material

Foams
Flexible, Slabstock

General Characterization

DESMOPHEN 1905 A is an inactive trifunctional polyether modified with a styrene-acrylonitrile (SAN) polymer. It is specifically designed for the production of conventional flexible slabstock foams with enhanced loadbearing properties. It exhibits a broad processing range and allows the use of most commercially available silicone surfactants and tertiary amine catalysts.

Storage Conditions

Recommended storage temperature (°C): 10-35
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers.
Partially used containers should be tightly resealed, due to the hygroskopic neture of the product.
Recommended temperature for processing is (°C): 20-25

Sampling

Moisture access must be prevented when taking product samples

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Appearance PET-03-04 opaque white liquid
TDI basic value pbw Desmodur® T on 100pbw DESMOPHEN® 1905 6.7
Density at 25 °C DIN 51757 g/ cm³ 1.022

Specifications

Property Name Test Method Unit Value
Hydroxyl number PET-11-01 mg KOH/g 41.5 - 45.5
Viscosity at 25 °C PET-10-01 mPa*s 780 - 1020
Water content PET-19-01 % by wt. ≤ 0.10
Water content PET-19-01 % by wt. ≤ 0.10
Hydroxyl number PET-11-01 mg KOH/g 41.5 - 45.5
Viscosity at 25 °C PET-10-01 mPa*s 780 - 1020

Downloads

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

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