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

NPU CORONATE AQ-120 Waterborne Curing Agent

NPU CORONATE AQ-120 is a waterborne polyisocyanate curing agent from Covestro’s CORONATE® series, designed for high-performance aqueous two-component polyurethane coatings. It offers excellent compatibility with acrylic/polyester dispersions, fast cure at ambient temperature, low VOC, and superior gloss/chemical resistance—ideal for industrial wood, plastic, and metal finishes.
  • npu coronate aq 120 waterborne curing agent_0f25bfba
  • npu coronate aq 120 waterborne curing agent_0f25bfba

Features Of NPU CORONATE AQ-120 Waterborne Curing Agent

  1. Low-VOC, water-dispersible aliphatic polyisocyanate curing agent compliant with global environmental regulations.

  2. Excellent hydrolytic stability for extended pot life in aqueous two-component polyurethane systems.

  3. Enables rapid ambient-cure film formation with high crosslink density and superior hardness development.

  4. Provides outstanding chemical resistance, including to solvents, cleaners, and mild acids.

  5. Compatible with a broad range of waterborne acrylic, polyester, and polyurethane dispersions.

Typical Applications Of NPU CORONATE AQ-120 Waterborne Curing Agent

  1. Architectural and industrial waterborne topcoats for metal substrates.

  2. High-performance wood coatings requiring low emissions and fast handling.

  3. Automotive refinish clearcoats and basecoat/clearcoat systems.

  4. Plastic coatings for interior automotive parts and consumer electronics housings.

  5. Waterborne coil coatings for pre-finished building panels and appliances.

Specifications Of NPU CORONATE AQ-120 Waterborne Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based trimer)
Product FormWater-dispersible liquid
AppearanceClear to slightly hazy, colorless to pale yellow dispersion
NCO Content (wt%)9.5 – 10.5%
pH (10% aqueous dispersion)7.0 – 8.5
Viscosity (25°C, mPa·s)200 – 600 (Brookfield RVT, spindle #3, 20 rpm)
Solids Content (wt%)45 – 50%
Primary ApplicationsTwo-component waterborne polyurethane coatings


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