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

NPU CORONATE AQ-125 Waterborne Curing Agent

NPU CORONATE AQ-125 is a waterborne polyisocyanate curing agent from Covestro’s CORONATE® series, designed for high-performance aqueous two-component polyurethane coatings. It delivers excellent gloss retention, chemical resistance, and fast ambient-cure capability while meeting stringent VOC regulations. Ideal for automotive refinish, industrial wood, and plastic coatings requiring low-emission, durable finishes.
  • npu coronate aq 125 waterborne curing agent_a9477c25
  • npu coronate aq 125 waterborne curing agent_a9477c25

Features Of NPU CORONATE AQ-125 Waterborne Curing Agent

  1. Waterborne aliphatic polyisocyanate dispersion with excellent hydrolytic stability.

  2. Low VOC content, compliant with stringent environmental regulations for industrial coatings.

  3. Enables fast ambient-cure and low-bake performance in waterborne 2K polyurethane systems.

  4. Provides superior gloss retention, hardness development, and chemical resistance in final films.

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

Typical Applications Of NPU CORONATE AQ-125 Waterborne Curing Agent

  1. Automotive refinish coatings requiring low-VOC, high-performance topcoats.

  2. Industrial maintenance coatings for metal substrates including machinery and equipment.

  3. Wood finishing systems for furniture and cabinetry where waterborne compliance is mandatory.

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

  5. Architectural and decorative coatings for interior metal and wood surfaces.

Specifications Of NPU CORONATE AQ-125 Waterborne Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based) dispersion
Product FormOpaque white to light yellow liquid
AppearanceHomogeneous aqueous dispersion
Solids Content (wt%)30–32%
NCO Content (wt%)4.8–5.2%
pH7.0–8.5
Viscosity (25°C, mPa·s)150–400
Storage Stability≥6 months at 5–30°C in sealed container


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