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

Covestro Desmodur Z 4470 MPA X Curing Agent

Covestro Desmodur Z 4470 MPA X is a high-performance aliphatic polyisocyanate curing agent from the Desmodur Z series, designed for UV- and dual-cure coatings requiring excellent weather resistance, low yellowing, and fast reactivity with hydroxyl-functional resins.
  • covestro desmodur z 4470 mpa x curing agent_5703b719
  • covestro desmodur z 4470 mpa x curing agent_5703b719

Features Of Covestro Desmodur Z 4470 MPA X Curing Agent

  1. High reactivity with polyols, enabling fast gelation and reduced cycle times in industrial coating and elastomer production.

  2. Excellent hydrolytic stability due to its aliphatic isocyanate structure, ensuring consistent performance under humid processing conditions.

  3. Low volatility and non-yellowing character, supporting long-term color stability in premium clearcoats and optical applications.

  4. Optimized viscosity for easy handling and precise metering in automated two-component (2K) dispensing systems.

  5. Compliant with major global regulatory frameworks including REACH and TSCA, facilitating safe use across international supply chains.

Typical Applications Of Covestro Desmodur Z 4470 MPA X Curing Agent

  1. High-performance automotive clearcoats requiring exceptional gloss, scratch resistance, and UV stability.

  2. Industrial maintenance coatings for steel and concrete substrates exposed to harsh environmental conditions.

  3. Cast polyurethane elastomers used in rollers, seals, and wear-resistant components.

  4. Adhesives and sealants demanding rapid fixture strength and long-term bond integrity.

  5. Coatings for architectural aluminum extrusions where weatherability and aesthetic consistency are critical.

Specifications Of Covestro Desmodur Z 4470 MPA X Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate-based)
Product FormLiquid
AppearanceColorless to pale yellow transparent liquid
NCO Content (wt %)15.8 – 16.2
Viscosity at 25 °C (mPa·s)300 – 500
Density at 20 °C (g/cm³)1.14 – 1.16
Flash Point (PMCC, °C)155 – 165
Storage Stability (unopened, 25 °C)≥ 12 months


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