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

Wanhua MDI-100 Curing Agent

Wanhua MDI-100 Curing Agent is a high-reactivity aromatic polyisocyanate from Wanhua’s MDI series, specifically designed for rigid polyurethane foam and coating applications. It offers excellent dimensional stability, thermal resistance, and fast cure speed. Compatible with polyester/polyether polyols, it delivers superior mechanical strength and low fogging—ideal for automotive, insulation, and industrial uses.
  • wanhua mdi 100 curing agent_cb9a3e81
  • wanhua mdi 100 curing agent_cb9a3e81

Features Of Wanhua MDI-100 Curing Agent

  1. High reactivity with polyols and amines, enabling rapid cure at ambient or elevated temperatures.

  2. Excellent compatibility with aromatic and aliphatic polyurethane systems for consistent film formation.

  3. Low viscosity (<1500 mPa·s at 25°C) ensures easy handling, precise metering, and uniform dispersion.

  4. Superior hydrolytic stability compared to conventional aliphatic isocyanates, enhancing shelf life.

  5. Low monomeric MDI content (<0.5 wt%), meeting stringent occupational health and safety requirements.

Typical Applications Of Wanhua MDI-100 Curing Agent

  1. Two-component polyurethane coatings for industrial metal protection (e.g., machinery, agricultural equipment).

  2. High-performance adhesives in automotive interior bonding and composite lamination.

  3. Cast elastomer systems for mining screens, rollers, and wear-resistant components.

  4. Reaction injection molding (RIM) and structural foam applications requiring dimensional stability.

  5. Sealants and grouts for infrastructure repair and waterproofing in civil engineering projects.

Specifications Of Wanhua MDI-100 Curing Agent

Chemical TypeAromatic polyisocyanate blend (MDI-based)
Product FormLiquid
AppearanceClear to pale yellow transparent liquid
NCO Content (wt%)29.5–30.5%
Viscosity (mPa·s at 25°C)1200–1600
Density (g/cm³ at 25°C)1.21–1.23
Flash Point (°C, closed cup)175–185
Storage Stability (unopened, 25°C)≥12 months


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