الوثائق الفنية
Combination of aliphatic polyisocyanate and biuret of hexamethylene diisocyanate. It acts as a cross linker.
تفاصيل
تنصح ل
منتج
التركيب الكيميائي
Combination of aliphatic polyisocyanate and biuret of hexamethylene diisocyanate
مزايا
- 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
تطبيقات أخرى
Adhesives
Sealants
maintenance-, wood-, industrial- and plastic coatings
تخزين
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
معاملة
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.
معلومات تقنية
كمية | قدر | وحدة | التعلیق |
---|---|---|---|
خصائص المظهر | |||
Color | <40 | َApha | ISO 6271 |
الخصائص الفيزيائية | |||
Residual monomers | <5000 | PPM | HDI;ISO10283 |
Density | 1.07 | g/ml | ISO 2811; 23°C |
Viscosity | 250 ± 75 | cP | ISO 3219;at 23°C |
الخصائص الحرارية | |||
flash point | 38 | ºC | ISO 1523; Closed up |
الخواص الكيميائية | |||
Shelf Life | >6 | month | |
NCO Content | 16.5 ± 0.3 | % | ISO 11909 |
Factor number | 3 - 4 | ||
Non-volatile materials | 75 ± 1 | % wt | ISO 3251 |
الذوبانية | |||
Solubility | Aromatics | ||
Solubility |