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

Covestro Desmodur IPDI Curing Agent

Covestro Desmodur IPDI Curing Agent is a high-purity, aliphatic diisocyanate from the Desmodur® series, specifically IPDI (isophorone diisocyanate), widely used as a crosslinker in premium UV- and heat-curable polyurethane coatings, adhesives, and elastomers requiring excellent weather resistance, low viscosity, and superior yellowing resistance.
  • covestro desmodur ipdi curing agent_70764fdf
  • covestro desmodur ipdi curing agent_70764fdf

Features Of Covestro Desmodur IPDI Curing Agent

  1. Highly aliphatic isocyanate offering excellent UV stability and color retention in final coatings.

  2. Low volatility and favorable handling properties due to its dimeric structure and low monomer content.

  3. Excellent compatibility with a wide range of polyols, including polyester, acrylic, and polycarbonate diols.

  4. Enables formulation of high-performance, two-component polyurethane systems with balanced pot life and rapid cure development.

  5. Complies with major global regulatory frameworks for industrial coatings, including REACH and VOC-compliant formulations.

Typical Applications Of Covestro Desmodur IPDI Curing Agent

  1. High-end automotive clearcoats and OEM topcoats requiring long-term gloss and weather resistance.

  2. Aerospace interior and exterior coatings demanding low outgassing and superior durability.

  3. Industrial maintenance coatings for wind turbine blades, rail vehicles, and heavy machinery.

  4. High-performance wood finishes for premium furniture and architectural millwork.

  5. Specialty plastic coatings for optical lenses, electronic housings, and medical device components.

Specifications Of Covestro Desmodur IPDI Curing Agent

Chemical TypeAliphatic isocyanurate (IPDI-based trimer)
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt %)17.5 – 18.5
Viscosity at 25 °C (mPa·s)1,200 – 2,000
Density at 20 °C (g/cm³)1.16 – 1.19
Monomeric IPDI Content (wt %)< 0.5
Storage Stability (unopened, 25 °C)≥ 12 months


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