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Low-VOC, aqueous aliphatic polyisocyanate dispersion for environmentally compliant coatings.
Excellent hydrolytic stability and storage shelf life under ambient conditions.
Fast room-temperature curing with coalescing agents, enabling efficient production throughput.
Superior compatibility with acrylic, polyester, and hybrid waterborne resins.
Delivers high gloss, excellent chemical resistance, and outstanding UV stability in final films.
Automotive refinish clearcoats and basecoats.
Industrial maintenance coatings for metal and plastic substrates.
Architectural protective topcoats for façades and structural steel.
Wood coatings requiring low odor and rapid handling strength.
Coil coatings where low-bake performance and corrosion resistance are critical.
| Chemical Type | Aliphatic polyisocyanate (HDI-based) dispersion |
| Product Form | Waterborne liquid |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| NCO Content (wt%) | 8.5–9.5% |
| pH (25°C) | 7.0–8.5 |
| Viscosity (mPa·s, 25°C, Brookfield LVT, Spindle #3, 60 rpm) | 150–400 |
| Density (g/cm³, 25°C) | 1.04–1.08 |
| Recommended Storage Temperature | 5–30°C, protected from freezing |
Q1: What types of waterborne resins is NPU CORONATE AQ-210 compatible with?
A: NPU CORONATE AQ-210 is specifically designed for use with waterborne polyurethane dispersions (PUDs), acrylic emulsions, and hybrid acrylic-polyurethane systems. It provides efficient crosslinking while maintaining colloidal stability during formulation and storage.
Q2: How does AQ-210 affect pot life and film formation in waterborne coatings?
A: AQ-210 offers a balanced reactivity profile—providing sufficient pot life for standard production conditions while enabling rapid development of mechanical properties after application. Film formation proceeds smoothly at ambient or slightly elevated temperatures, with full cure typically achieved within 24–72 hours depending on film thickness and environmental conditions.
Q3: Can AQ-210 be used in low-VOC or zero-VOC formulations?
A: Yes—AQ-210 is a water-based curing agent with negligible VOC content, making it well-suited for formulating compliant low-VOC and zero-VOC coating systems without requiring organic co-solvents for dispersion or stabilization.
Q4: Is special handling or neutralization required before adding AQ-210 to the base resin?
A: No neutralization is needed. AQ-210 is supplied as a stable, ready-to-use aqueous dispersion and can be incorporated directly into most waterborne resin systems under gentle agitation. For optimal compatibility, it is recommended to add AQ-210 to the base resin rather than vice versa, and to avoid high-shear mixing that may destabilize the dispersion.
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