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

Wanhua Chemical HT-90B HDI Curing Agent

WanhuaChemicalHT-90BHDICuringAgentisahigh-performancealiphaticpolyisocyanatecrosslinkerfromtheHTseries,designedforpremiumautomotiveandindustrialcoatings.Itoffersexcellentweatherresistance,glossretention,andfastcureatambienttemperatureswithlowviscosityandhighreactivity.
  • wanhua chemical ht 90b hdi curing agent_c27f7b12
  • wanhua chemical ht 90b hdi curing agent_c27f7b12

Features Of Wanhua Chemical HT-90B HDI Curing Agent

  1. High reactivity with hydroxyl-functional resins, enabling rapid curing at ambient or low-temperature conditions.

  2. Excellent yellowing resistance and long-term UV stability for high-clarity and durable coatings.

  3. Low viscosity and good compatibility with acrylic, polyester, and polycarbonate polyols.

  4. Non-crystalline liquid form ensures consistent handling and easy metering in industrial dispensing systems.

  5. Meets stringent VOC regulations with negligible monomer content and no added solvents.

Typical Applications Of Wanhua Chemical HT-90B HDI Curing Agent

  1. Automotive clearcoats and basecoats requiring high gloss, chip resistance, and weatherability.

  2. Industrial maintenance coatings for metal substrates in architectural and infrastructure projects.

  3. High-performance plastic coatings for automotive interior trim and electronic housings.

  4. UV-resistant topcoats for outdoor signage, agricultural equipment, and transportation components.

  5. Two-component (2K) polyurethane systems used in premium wood finishing and furniture applications.

Specifications Of Wanhua Chemical HT-90B HDI Curing Agent

Chemical TypeAliphatic HDI-based polyisocyanate (trimer)
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, transparent liquid without sediment
NCO Content (wt%)18.5–19.5%
Viscosity (25°C, mPa·s)1,200–1,800
Density (25°C, g/cm³)1.18–1.22
Flash Point (°C, closed cup)145–155
Storage Stability (unopened, 25°C)≥12 months


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