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

Wanhua WANNATE MDI50 Curing Agent

Wanhua WANNATE MDI50 Curing Agent is a premium aliphatic polyisocyanate hardener from Wanhua’s WANNATE series, designed for high-performance two-component polyurethane coatings. It delivers excellent weather resistance, gloss retention, and chemical durability. Ideal for automotive refinishes, industrial finishes, and protective coatings requiring low VOC and rapid curing.
  • wanhua wannate mdi50 curing agent_6568fb70
  • wanhua wannate mdi50 curing agent_6568fb70

Features Of Wanhua WANNATE MDI50 Curing Agent

  1. High reactivity with polyols, enabling fast demolding and efficient production cycles.

  2. Excellent hydrolytic stability, ensuring consistent performance under humid processing conditions.

  3. Low volatility and minimal monomeric MDI content, supporting improved workplace safety and handling.

  4. Balanced functionality and viscosity for easy metering, mixing, and processing in automated systems.

  5. Compatible with a broad range of polyester and polyether polyols for versatile formulation design.

Typical Applications Of Wanhua WANNATE MDI50 Curing Agent

  1. Flexible and semi-rigid polyurethane foams for automotive seating and interior components.

  2. Reaction injection molding (RIM) and structural RIM (SRIM) parts in transportation and industrial equipment.

  3. Microcellular elastomers for gaskets, seals, and vibration-damping components.

  4. Coatings and adhesives requiring rapid cure, high crosslink density, and chemical resistance.

  5. Cast elastomer systems for rollers, wheels, and wear-resistant industrial parts.

Specifications Of Wanhua WANNATE MDI50 Curing Agent

Chemical TypeModified diphenylmethane diisocyanate (MDI)-based prepolymer
Product FormLiquid
AppearanceClear to pale yellow transparent liquid
Isocyanate Content (NCO %)Approx. 13.5–14.5%
Viscosity at 25°C150–300 mPa·s
Specific Gravity (25°C)1.18–1.22 g/cm³
Storage Stability≥6 months at ≤25°C in sealed, dry conditions
Primary ApplicationsPolyurethane elastomers, foams, coatings, adhesives, and sealants


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