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Combination of aliphatic polyisocyanate and biuret of hexamethylene diisocyanate. It acts as a cross linker.
Детали
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Химический состав
Combination of aliphatic polyisocyanate and biuret of hexamethylene diisocyanate
Дреимущества
- compatibility with 2K-PUR, polyesters, acrylates, flexible medium-oil or short-oil alkyd resins and other OH-group containing resins
- dilution in aromatics and esters
- light stability and outstanding weathering resistant in polyurethane paints
- blends of Vestanat® HB 2640 with Vestanat® T 1890 in 2K-PUR paints improve drying performance, surface hardness, pot life and chemical resistance against enviromental impact
Другие приложения
Adhesives
Sealants
maintenance-, wood-, industrial- and plastic coatings
Место хранения
Vestanat® HB 2640 MX is moisture sensitive.It can be stored in unopened containers for at least 6 months at room temperature without loss of quality
Обработка
The basic reactivity of Vestanat® HB 2640 MX is lower compared to aromatic- and higher compared to cycloaliphatic polyisocyanate. If necessary zinc octoate, tin- or bismuth-catalysts are recommended as a urethane catalyst.
Технические данные
| Количество | Стоимость | Е диница измерения | 3амечание |
|---|---|---|---|
| Свойства внешнего вида | |||
| Color | <40 | َApha | ISO 6271 |
| Физические свойства | |||
| Residual monomers | <5000 | PPM | HDI;ISO10283 |
| Density | 1.07 | g/ml | ISO 2811; 23°C |
| Viscosity | 250 ± 75 | cP | ISO 3219;at 23°C |
| Тепловые свойства | |||
| flash point | 38 | ºC | ISO 1523; Closed up |
| Химические свойства | |||
| Shelf Life | >6 | month | |
| NCO Content | 16.5 ± 0.3 | % | ISO 11909 |
| Factor number | 3 - 4 | ||
| Non-volatile materials | 75 ± 1 | % wt | ISO 3251 |
| Растворимость | |||
| Solubility | Aromatics | ||
| Solubility | |||