- Coatings, paints & inks
Desmodur® BL 3370 MPA
Blocked aliphatic HDI-polyisocyanate. To formulate lightfast one-component stoving polyurethane coatings with high themal yellowing resistance; as an additive to improve flexibility and adhesion.
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About
Product Types
- PIC
- HDI
- Isocyanate
- Polyisocyanurate
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
Material
- Coatings, paints & inks
- Elastic, Solventborne, Thermally resistant, Flexible
General Characterization
Desmodur BL 3370 MPA is a blocked aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
It is suitable for use in combination with Desmophen® grades to formulate lightfast, one-component stoving polyurethane coatings with high resistance to thermal yellowing; as an additive in conventional stoving coating systems to improve the reactivity, flexibility and adhesion.
It is suitable for use in combination with Desmophen® grades to formulate lightfast, one-component stoving polyurethane coatings with high resistance to thermal yellowing; as an additive in conventional stoving coating systems to improve the reactivity, flexibility and adhesion.
Storage Conditions
Desmodur BL 3370 MPA should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product. Recommended storage temperature is 0º-30ºC.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Blocked NCO content | % | approx. 8.9 | |
| Equivalent weight | approx. 470 | ||
| Viscosity at 25^oC | mPa∙s | approx. 3,200 | |
| Density | g/cm^3 | approx. 1.08 | |
| Flash point | °C | approx. 49 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Hazen color value | ≤ 60 | ||
| Viscosity at 23°C | mPa∙s | 3,800 ± 1,200 | |
| Free NCO content | % | ≤ 0.2 | |
| Non-volatile content (1 g / 60 min / 80^oC) | % | 70 ± 3 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
