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Low-VOC, waterborne aliphatic polyisocyanate dispersion compliant with global environmental regulations.
Excellent hydrolytic stability for extended shelf life and consistent performance in aqueous systems.
Fast ambient-cure kinetics enabling efficient production throughput without forced drying.
Superior compatibility with acrylic, polyester, and hybrid waterborne resins.
Delivers high crosslink density for exceptional chemical resistance and mechanical durability.
Waterborne industrial maintenance coatings for metal substrates.
High-performance automotive refinish clearcoats and basecoats.
Eco-friendly wood coatings for furniture and cabinetry.
Architectural wall and facade coatings requiring low-emission certification.
Plastic coatings for automotive interior trim and consumer electronics.
| Chemical Type | Aliphatic polyisocyanate (HDI-based) dispersion |
| Product Form | Opaque white liquid |
| Appearance | Homogeneous milky dispersion |
| Solids Content (wt%) | 35 ± 2% |
| pH (at 25°C) | 7.5 – 8.5 |
| Viscosity (mPa·s, 25°C) | 150 – 300 |
| NCO Content (wt%) | 6.2 – 6.8% |
| Primary Applications | Two-component waterborne topcoats and primers |
Q1: What types of waterborne resins is NPU CORONATE AQ-140 compatible with?
A: NPU CORONATE AQ-140 is specifically designed for use with aqueous polyurethane dispersions (PUDs), acrylic emulsions, and hybrid acrylic-polyurethane systems. It provides efficient crosslinking in neutral to mildly alkaline formulations and demonstrates good compatibility with common co-solvents and surfactants used in waterborne coatings.
Q2: How does AQ-140 affect film formation and pot life in waterborne coatings?
A: AQ-140 enables ambient or low-bake curing with minimal impact on initial viscosity, supporting extended pot life—typically several hours under controlled conditions. It promotes rapid development of mechanical properties post-drying while maintaining good film clarity and flexibility, especially in thin-film applications such as wood and plastic coatings.
Q3: Is AQ-140 suitable for low-VOC or zero-VOC formulations?
A: Yes—AQ-140 is a water-based, non-solvent curing agent with negligible VOC content, making it well-suited for formulating compliant low-VOC and zero-VOC coatings. Its hydrophilic nature supports stable dispersion without requiring high-boiling solvents or reactive diluents.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store AQ-140 in its original sealed container at temperatures between 5 °C and 30 °C, away from freezing and direct sunlight. Under these conditions, the product typically maintains stability for up to 12 months. Avoid prolonged exposure to high humidity or repeated freeze-thaw cycles.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
