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Cycloaliphatic polyisocyanate based on isophorone diisocyanate. It acts as a cross linker.
Details
Recommended for
Industry
Producer
Chemical Composition
70% isocyanurate based
Advantages
- 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
- by partial use of Vestanat® T 1890 in 2K-PUR paints based on linear aliphatic polyisocyanates the drying performance, surface hardness, pot life and chemical resistance against enviromental impact can be improved
Other Applications
Adhesives
automotive OEM and car repair paints
fleet and maintenance coatings
Storage
Vestanat® T 1890-M can be stored in unopened containers for at least one year without loss of quality
Handling
The basic reactivity of Vestanat® T 1890-M is lower compared to linear aliphatic polyisocyanates.In order to improve the reactivity, the use of tin- or bismuth-catalysts are recommended. The amount to be used depends on the type and the OH-number of the resin and is typically in the range of 0.01 and 0.1% by wt., calc. on solids.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Color (Hazen) | <80 | ISO 6271 | |
| Physical state | Fluid | ||
| Physical Properties | |||
| Density | 1.025 | g/ml | DIN 51757; ASTM D2111;15°C |
| Viscosity | 4000 ± 600 | cP | DIN EN ISO 3219;at 23°C |
| Residual monomers | <5000 | PPM | IPDI;DIN EN ISO10283 |
| Thermal Properties | |||
| flash point | 39 | ºC | DIN EN ISO 1523; Closed up |
| Chemical Properties | |||
| Shelf Life | >12 | month | |
| NCO Content | 12.0 ± 0.3 | % | DIN EN ISO 11909; ASTM D2572 |
| Non-volatile materials | 70 ± 1 | % wt | (DIN EN( IS.O 3251 (1,2-1,5g 1h 150°C |
| Factor number | 3 - 4 | ||
| Solubility | |||
| Solubility | Aromatics | ||
| Solubility | |||
| Solvent type | (Kristallol 30/Solvesso A(3:1 | ||