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Desmophen® 2450 X - for flexible slabstock foams

A branched polyester based on adipic acid, phthalic acid, propylene glycol and glycerine. At room temperature the product is a highly viscous, slightly yellowish 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® 2450 X, based on glycerine as branching component, is a highly viscous, slightly yellowish liquid at ambient temperature. 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
Flash point DIN 51758 °C 228
TDI basic value pbw Desmodur® T on 100 pbw Desmophen® 2450 X 33
Specific heat capacity (Cp) at 25 °C DIN 51007 kJ/kg ^. K 1.83
Thermal conductivity at 20 °C DIN 52612-1 W ^. m^-1 ^. K^-1 0.15
Appearance PET-03-04 colourless to pale liquid
Pour point DIN 3016 °C 2
Density 25 °C DIN 51757 g/cm³ approx 1.12

Specifications

Property Name Test Method Unit Value
Acidity DIN EN ISO 2114 mg KOH/g ≤ 4.0
Acidity DIN EN ISO 2114 mg KOH/g ≤ 4.0
Colour value (Hazen) DIN EN 1557 ≤ 200
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 420 - 620
Water content DIN 51777-1 % by wt. ≤ 0.10
Hydroxyl number DIN 53240-2 mg KOH/g 198 - 228
Hydroxyl number DIN 53240-2 mg KOH/g 198 - 228
Viscosity 25 °C DIN EN ISO 3219/B mPa*s 17,200 - 22,800
Water content DIN 51777-1 % by wt. ≤ 0.10
Viscosity 75 °C DIN EN ISO 3219/B mPa*s 420 - 620
Colour value (Hazen) DIN EN 1557 ≤ 200
Viscosity 25 °C DIN EN ISO 3219/B mPa*s 17,200 - 22,800

Downloads

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

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