Isocyanurate trimer of hexamethylene diisocyanate. Polyurethane systems built on it resist yellowing, weathering, oil, solvents and wear, with good elasticity.
Product Code
HDI Trimer
Hexamethylene Diisocyanate Trimer
CAS Number
28182-81-2
EINECS
931-274-8
Description
Synonyms
Key applications
- Polyurethane coatings and paints
- Polyurethane elastomers and adhesives
Characteristics
| Appearance | Colorless transparent liquid |
|---|---|
| Color (Pt-Co) | ≤ 40 |
| Purity | ≥ 99.5% |
| NCO content | 21.5-22.1% |
| Viscosity (23°C) | 2250-3750 mPa.s |
| Monomeric HDI | ≤ 0.1% |
| Molecular formula | C24H36N6O6 |
| Molecular weight | 504.6 |