Desmodur® 1520 A20
A dark-brown, liquid blend of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It is classified as a polymeric MDI (PMDI). Desmodur 1520 A20 is used for the production of polyurea-bonded particleboard and mouldings made from agricultural and forestry products and waste. When manufactured accordingly, particleboard produced using Desmodur 1520 A20 satisfy the requirements of EN Standard 312 (respectively flat pressed board for the building industry; types V20, V100 and V100G)NCO Content ca. 31 %
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About
Product Types
- Aromatic polyisocyanate
Material
No data available
General Characterization
Desmodur 1520 A20 is a dark-brown, liquid blend of diphenylmethane-4,4'-diisocyanate (MDI) with isomers and homologues of higher functionality. It is classified as a polymeric MDI (PMDI). Desmodur 1520 A20 is used for the production of polyurea-bonded particleboard and mouldings made from agricultural and forestry products and waste. When manufactured accordingly, particleboard produced using Desmodur 1520 A20 satisfy the requirements of EN Standard 312 (respectively flat pressed board for the building industry; types V20, V100 and V100G)
Storage Conditions
Recommended storage temperature: Storage stability :+ 10 to + 30 *C.
Storage stability (ex works): 6 months if stored under moisture-free conditions.
Storage stability (ex works): 6 months if stored under moisture-free conditions.
Sampling
Moisture access should be prevented when taking product samples.
Packaging Type
Drums, IBCs, tank containers and tank trucks
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Coefficient of thermal expansion | K-1 | 6.59 . 10-4 | |
| Density 20 °C | DIN 51757 | g/cm³ | approx. 1.23 |
| Specific heat (cp) | kJ/kgK | approx. 1.51 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| NCO-content | MDI-01-01 | % by wt. | 30.5 - 32.5 |
| Acidity | MDI-01-03 | ppm HCI | max. 200 |
| Viscosity 25 °C*) | MDI-01-02 | mPa*s | 160 - 240 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com