- 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
- Solventborne, Flexible, Elastic, Weather resistant
General Characterization
Slightly branched hydroxyl-bearing polyester.
As a co-reactant primarily with Desmodur® N 75 and ultra N 3390 in the formulation of weather-stable flexible coatings.
As a co-reactant primarily with Desmodur® N 75 and ultra N 3390 in the formulation of weather-stable flexible coatings.
Storage Conditions
- Storage in original sealed Covestro container.
- Recommended storage temperature: max. 30 °C.
- Protect from moisture, heat and foreign material.
General information: 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: max. 30 °C.
- Protect from moisture, heat and foreign material.
General information: 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.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Flash point | DIN EN ISO 2719 | °C | approx. 32 |
| Density at 20°C | DIN EN ISO 2811-2 | g/ml | approx. 1.11 |
| Equivalent weight | approx. 485 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Hydroxyl content | DIN EN ISO 4629-2 | % | 3.5 ± 0.3 |
| Water content | DIN 51 777/1 | % | ≤ 0.1 |
| Acid value | DIN EN ISO 2114 | mg KOH/g | 1.8 ± 1 |
| Non-volatile content 1 g resin/1 h 125 °C, convection oven | DIN EN ISO 3251 | % | 80 ± 1 |
| Viscosity at 23°C | DIN EN ISO 3219/A.3 | mPa*s | 3,000 ± 400 |
| Hazen color value | DIN EN 1557 | ≤ 150 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
