Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

NPU CORONATE AQ-140 Waterborne Curing Agent

NPU CORONATE AQ-140 is a waterborne polyisocyanate curing agent from the CORONATE series by NPU Chemicals, designed for eco-friendly two-component waterborne coatings. It offers excellent compatibility with acrylic/polyurethane dispersions, fast curing at ambient temperature, low VOC, and superior film hardness, chemical resistance, and gloss retention—ideal for industrial wood, metal, and plastic finishing applications.
  • npu coronate aq 140 waterborne curing agent_c4f802c1
  • npu coronate aq 140 waterborne curing agent_c4f802c1

Features Of NPU CORONATE AQ-140 Waterborne Curing Agent

  1. Low-VOC, waterborne aliphatic polyisocyanate dispersion compliant with global environmental regulations.

  2. Excellent hydrolytic stability for extended shelf life and consistent performance in aqueous systems.

  3. Fast ambient-cure kinetics enabling efficient production throughput without forced drying.

  4. Superior compatibility with acrylic, polyester, and hybrid waterborne resins.

  5. Delivers high crosslink density for exceptional chemical resistance and mechanical durability.

Typical Applications Of NPU CORONATE AQ-140 Waterborne Curing Agent

  1. Waterborne industrial maintenance coatings for metal substrates.

  2. High-performance automotive refinish clearcoats and basecoats.

  3. Eco-friendly wood coatings for furniture and cabinetry.

  4. Architectural wall and facade coatings requiring low-emission certification.

  5. Plastic coatings for automotive interior trim and consumer electronics.

Specifications Of NPU CORONATE AQ-140 Waterborne Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based) dispersion
Product FormOpaque white liquid
AppearanceHomogeneous 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 ApplicationsTwo-component waterborne topcoats and primers


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