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

Tosoh CORONATE MPAX-75 Curing Agent

Tosoh CORONATE MPAX-75 is a high-performance aliphatic polyisocyanate curing agent from the CORONATE® series, designed for premium two-component polyurethane coatings. It offers excellent weather resistance, low viscosity, fast curing at ambient temperatures, and superior gloss retention—ideal for automotive refinish, industrial maintenance, and high-end architectural applications requiring durability and clarity.
  • tosoh coronate mpax 75 curing agent_300871c2
  • tosoh coronate mpax 75 curing agent_300871c2

Features Of Tosoh CORONATE MPAX-75 Curing Agent

  1. Aliphatic polyisocyanate-based curing agent offering excellent weather resistance and UV stability.

  2. Low-viscosity liquid formulation enabling easy handling, precise metering, and efficient mixing with hydroxyl-functional resins.

  3. Non-yellowing performance ideal for high-gloss, clear-coat, and color-critical topcoat applications.

  4. Reactive NCO content optimized for balanced pot life and rapid ambient-to-moderate temperature cure kinetics.

  5. Complies with major global VOC regulations when formulated into compliant coating systems.

Typical Applications Of Tosoh CORONATE MPAX-75 Curing Agent

  1. Automotive OEM and refinish clearcoats requiring long-term gloss retention and chipping resistance.

  2. High-performance industrial maintenance coatings for infrastructure and heavy equipment.

  3. Premium architectural coatings for façades, aluminum composite panels (ACP), and metal cladding.

  4. Plastic coatings for automotive interior trim and exterior decorative components.

  5. UV-resistant wood finishes for premium furniture and flooring applications.

Specifications Of Tosoh CORONATE MPAX-75 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate trimer derivative)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent liquid
NCO Content (wt%)Approx. 13.8–14.2%
Viscosity at 25°C (mPa·s)Approx. 800–1,200
Density at 25°C (g/cm³)Approx. 1.18–1.22
Solvent ContentAcetate-based (e.g., butyl acetate, ethyl acetate)
Primary Applications2K polyurethane topcoats, clearcoats, and high-durability industrial finishes


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