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

Tosoh CORONATE 94 Curing Agent

Tosoh CORONATE 94 Curing Agent is a high-performance aliphatic polyisocyanate crosslinker from Tosoh’s CORONATE series, designed for premium two-component polyurethane coatings. It offers excellent weather resistance, low viscosity, and fast curing at ambient temperatures—ideal for automotive refinishes, industrial finishes, and high-gloss topcoats requiring superior gloss retention and chemical durability.
  • tosoh coronate 94 curing agent_57b0e394
  • tosoh coronate 94 curing agent_57b0e394

Features Of Tosoh CORONATE 94 Curing Agent

  1. High-reactivity aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry.

  2. Excellent weather resistance and UV stability, with minimal yellowing upon prolonged exposure.

  3. Low viscosity for easy handling, blending, and solvent-free or low-solvent formulation compatibility.

  4. Good compatibility with common hydroxyl-functional resins including acrylics, polyesters, and polyethers.

  5. Meets stringent VOC regulations due to negligible monomeric HDI content (<0.1%) and no added solvents.

Typical Applications Of Tosoh CORONATE 94 Curing Agent

  1. High-performance automotive clearcoats and basecoat/clearcoat systems.

  2. Industrial maintenance coatings for metal and plastic substrates.

  3. Premium architectural coatings requiring long-term gloss retention and color stability.

  4. Plastic coatings for exterior automotive trim and electronic housings.

  5. Two-component (2K) polyurethane adhesives and sealants demanding fast cure and durability.

Specifications Of Tosoh CORONATE 94 Curing Agent

Chemical TypeHDI-based aliphatic isocyanurate trimer
Product FormLiquid
AppearanceColorless to pale yellow transparent liquid
NCO Content (wt%)18.5–19.5%
Viscosity at 25°C (mPa·s)1,800–2,500
Density at 25°C (g/cm³)1.17–1.19
Monomeric HDI Content<0.1%
Flash Point (COC, °C)>120


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