HDI Adduct Crosslinker (TMP/HDI Trifunctional)
In StockMOQ
200 kg
Lead Time
7–14 days
Packaging
200 kg steel drums
Specifications
| NCO Content | 11.0–12.5% |
| Functionality | ~3.0 |
| Solids Content | 75% in methoxypropyl acetate |
| Free Monomer HDI | <0.1% |
| Viscosity (23°C) | 3000–6000 mPa·s |
FAQ
HDI adduct (TMP-based) has lower functionality (~3) vs trimer (~3.5), producing a less densely crosslinked but more flexible film. It is preferred for flexible substrates, leather coatings, and interior wood where impact resistance and elongation are prioritised over chemical resistance. Trimer grades suit rigid industrial or automotive exterior applications.
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