myMixture of 2, 2, 4- and 2, 4, 4-trimethyl-hexamethylene diisocyanate. It exhibits low viscosity, high flexibility and excellent compatibility with polyols. Used for manufacturing of urethane modified resins for coatings.
Details
Product Type
Recommended for
Applications
Producer
Chemical Composition
Mixture of 2,2,4- and 2,4,4-trimethyl-hexamethylene diisocyanate
Advantages
- low viscosity
- high flexibility
- excellent compatibility with polyols
- resistance to weather and light
- more reactivity than cycloaliphatic diisocyanates
Other Applications
Coatings
Handling
It is recommended to use 0.001 to 0.01% dibutyl tin dilaurate (DBTDL), if acceleration is necessary.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Appearance | Colorless liquid | ||
| Color | <10 | َApha | DIN /ISO 6271 |
| Physical Properties | |||
| Purity | >99.5 | % | Gas chromatography |
| Density | 1.010 - 1.016 | g/ml | ( 20°C, DIN 51 757 (ASTM D 211 |
| Viscosity | 5 - 8 | cP | 23°C, DIN EN ISO 3219 |
| Vapor pressure | 0.002 | mm-Hg | 20°C |
| Thermal Properties | |||
| flash point | 148 | ºC | ( closed cup (DIN 51 75 |
| Chemical Properties | |||
| Chlorine content | <10 | ppm | |
| NCO Content | 39.7 - 40 | % | (EN ISO 11 909 (ASTM D 257 |