Low-viscosity aliphatic polyisocyanate curing agent based on hexamethylene diisocyanate (HDI) trimer chemistry.
Excellent weather resistance and UV stability, enabling long-term gloss and color retention in exterior coatings.
Fast ambient-cure capability with balanced reactivity—ideal for high-throughput industrial coating lines.
Low monomeric HDI content (<0.5 wt%), meeting stringent occupational health and safety requirements.
Compatible with a broad range of hydroxyl-functional acrylics, polyesters, and alkyds without potlife compromise.
Automotive OEM clearcoats and basecoats requiring high durability and low-VOC compliance.
Industrial maintenance coatings for metal substrates in architectural and infrastructure projects.
High-performance plastic coatings for automotive interior trim and electronics housings.
Premium wood finishes for furniture and flooring demanding scratch resistance and clarity.
Aerospace non-structural interior coatings where low outgassing and thermal stability are critical.
| Chemical Type | Aliphatic HDI-based polyisocyanate (trimer) |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| NCO Content (wt%) | 15.5 – 16.5 |
| Viscosity at 25°C (mPa·s) | 800 – 1,200 |
| Density at 25°C (g/cm³) | 1.18 – 1.22 |
| Monomeric HDI Content | < 0.5 wt% |
| Primary Applications | 2K polyurethane topcoats for automotive, industrial, and specialty coatings |
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E-mail: wangxingqiang@ericwchem.com
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