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Desmophen® 2400 S - for flexible slabstock foams

A branched polyester based on adipic acid, phthalic acid, propylene glycol and trimethylol propane. At room temperature the product is a highly viscous, brownish liquid. It is used to manufacture either semi-rigid polyurethane slabstock foams or foams with enhanced hardness. Hydroxyl Number ca. 215 mg KOH/g

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About

Product Types

  • Polyester polyol

Material

Foams
Slabstock

General Characterization

Desmophen® 2400 S, based on trimethylolpropane as branching component, is a highly viscous brownish liquid. It is used to manufacture either semi-rigid polyurethane slabstock foams or foams with enhanced hardness.

Storage Conditions

Recommended storage temperature (°C): 20 - 35
Shelf life (ex works)
12 months if stored in sealed, moisture-tight containers
Partially used containers should be tightly resealed due to the hygroscopic nature of the product.
Recommended temperature for processing (°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 colourless to pale liquid
Density 25 °C DIN 51757 g/cm³ approx 1.17
TDI basic value pbw Desmodur® T on 100 pbw Desmophen® 2400 S 33.3
Specific heat capacity (Cp) at 25 °C DIN 51007 kJ/kg ^. K 1.86
Flash point DIN 51758 °C 160
Thermal conductivity at 20 °C DIN 52612-1 W ^. m^-1 ^. K^-1 0.15
Pour point DIN 3016 °C 2

Specifications

Property Name Test Method Unit Value
Acidity DIN EN ISO 2114 mg KOH/g ≤ 3.0
Viscosity 70% DIN 53018 Brookfiel mPa*s 300 - 500
Hydroxyl number DIN 53240-2 mg KOH/g 205 - 225
Water content DIN 51777-1 % by wt. ≤ 0.05
Hydroxyl content DIN 53240-2 % by wt. 6.05 - 6.95
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 580 - 780
Colour value (Hazen) DIN EN 1557 ≤ 200
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 580 - 780
Acidity DIN EN ISO 2114 mg KOH/g ≤ 3.0
Colour value (Hazen) DIN EN 1557 ≤ 200
Hydroxyl number DIN 53240-2 mg KOH/g 205 - 225
Hydroxyl content DIN 53240-2 % by wt. 6.05 - 6.95
Water content DIN 51777-1 % by wt. ≤ 0.05
Viscosity 70% DIN 53018 Brookfiel mPa*s 300 - 500

Downloads

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

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