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

Tosoh CORONATE 1390 Curing Agent

Tosoh CORONATE 1390 Curing Agent is a high-performance aliphatic polyisocyanate crosslinker from Tosoh’s CORONATE series, designed for premium two-component polyurethane coatings requiring excellent weather resistance, gloss retention, and rapid cure at ambient or elevated temperatures.
  • tosoh coronate 1390 curing agent_23ba2b7d
  • tosoh coronate 1390 curing agent_23ba2b7d

Features Of Tosoh CORONATE 1390 Curing Agent

  1. Low-viscosity aliphatic polyisocyanate blend offering excellent flow and leveling in coating formulations.

  2. Excellent weather resistance and UV stability, minimizing yellowing and gloss loss in outdoor applications.

  3. Fast ambient-cure capability with good pot life balance for efficient production workflows.

  4. Compatible with a broad range of hydroxyl-functional resins including acrylics, polyesters, and polyethers.

  5. Meets stringent VOC regulations with low monomeric HDI content (< 0.1 wt%).

Typical Applications Of Tosoh CORONATE 1390 Curing Agent

  1. High-performance automotive OEM and refinish clearcoats.

  2. Industrial maintenance coatings for architectural metal and machinery.

  3. Premium wood coatings requiring clarity, hardness, and durability.

  4. Plastic coatings for automotive interior trim and consumer electronics housings.

  5. General-purpose two-component polyurethane topcoats for corrosion protection.

Specifications Of Tosoh CORONATE 1390 Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based trimer)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
NCO Content (wt%)15.8 – 16.4
Viscosity at 25°C (mPa·s)1,800 – 2,400
Density at 25°C (g/cm³)1.17 – 1.19
Monomeric HDI Content< 0.1 wt%
Flash Point (PMCC, °C)125 – 135


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