- Coatings, paints & inks
Desmophen® 670 BA
Slightly branched hydroxyl-bearing polyester.As a co-reactant primarily with Desmodur® N 75 and N 3390 in the formulation of weather-stable flexible coatings.
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About
Product Types
- Polyester resin
Material
- Coatings, paints & inks
- Elastic, Weather resistant, Solventborne, Flexible
General Characterization
Desmophen 670 BA is a slightly branched, hydroxyl-bearing polyester.
It is suitable as a co-reactant primarily with Desmodur® N 75A and N 3390A BA/SN in the formulation of weather-stable flexible coatings.
It is suitable as a co-reactant primarily with Desmodur® N 75A and N 3390A BA/SN in the formulation of weather-stable flexible coatings.
Storage Conditions
Desmophen 670 BA should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Under certain conditions (temperatures below 15°C, long storage) the product may become cloudy. It can be completely rehomogenized by heating to around 40°C or adding solvent, and can be further processed without any loss of quality. Recommended storage temperature is less than 30ºC.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 485 | ||
| Density at 20°C | g/ml | approx. 1.11 | |
| Flash point | °C | approx. 32 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Hazen color value | ≤ 150 | ||
| Water content | % | ≤ 0.1 | |
| Viscosity at 23°C | mPa∙s | 3,000 ± 400 | |
| Hydroxyl content | % | 3.5 ± 0.3 | |
| Non-volatile content 1 g resin / 1h/125°C, convection oven) | % | 80 ± 1 | |
| Acid value | mg KOH/g | 1.8 ± 1 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
