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

Covestro Desmodur Z4470 MPA-X Curing Agent

Covestro Desmodur Z4470 MPA-X Curing Agent is a low-viscosity aliphatic polyisocyanate hardener from the Desmodur Z series, designed for high-performance 2K polyurethane coatings. It offers excellent weather resistance, gloss retention, and fast curing at ambient temperatures—ideal for automotive clearcoats and industrial finishes requiring ISO 9001-compliant consistency and low VOC emissions.
  • covestro desmodur z4470 mpa x curing agent_fc9cf8d3
  • covestro desmodur z4470 mpa x curing agent_fc9cf8d3

Features Of Covestro Desmodur Z4470 MPA-X Curing Agent

  1. Highly reactive aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry.

  2. Low-viscosity liquid formulation enabling excellent processability and easy handling in automated mixing systems.

  3. Excellent UV stability and color retention — ideal for high-performance exterior coatings.

  4. Compliant with major global regulatory frameworks including REACH and VOC-compliant formulations.

  5. Enables fast curing at ambient or elevated temperatures without compromising film hardness or chemical resistance.

Typical Applications Of Covestro Desmodur Z4470 MPA-X Curing Agent

  1. High-gloss automotive clearcoats and OEM topcoats.

  2. Industrial maintenance coatings for metal and plastic substrates.

  3. Wind turbine blade protective coatings requiring long-term weathering resistance.

  4. Premium architectural façade coatings exposed to harsh environmental conditions.

Specifications Of Covestro Desmodur Z4470 MPA-X Curing Agent

Chemical TypeAliphatic HDI-based polyisocyanate (trimer)
Product FormLiquid
AppearanceClear, pale yellow to colorless liquid
NCO Content (wt %)15.5 – 16.5
Viscosity at 25 °C (mPa·s)1,800 – 2,500
Density at 20 °C (g/cm³)1.19 – 1.23
Flash Point (PMCC, °C)145 – 155
Primary ApplicationsTwo-component polyurethane coatings (2K PU)


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