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

Tosoh CORONATE HX-T Isocyanate Curing Agent

Tosoh CORONATE HX-T is a high-reactivity aliphatic polyisocyanate curing agent from Tosoh’s CORONATE series, designed for premium two-component polyurethane coatings requiring excellent weather resistance, low yellowing, and fast cure at ambient or elevated temperatures. It offers superior gloss retention, chemical durability, and compatibility with hydroxyl-functional resins.
  • tosoh coronate hx t isocyanate curing agent_b3235f3f
  • tosoh coronate hx t isocyanate curing agent_b3235f3f

Features Of Tosoh CORONATE HX-T Isocyanate Curing Agent

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

  2. Outstanding UV stability and color retention, ideal for high-durability exterior coatings.

  3. Fast ambient-cure capability with balanced reactivity—enables efficient production without forced drying.

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

  5. Low monomeric HDI content (<0.5%), supporting safer handling and compliance with industrial hygiene standards.

Typical Applications Of Tosoh CORONATE HX-T Isocyanate Curing Agent

  1. Automotive OEM and refinish clearcoats requiring gloss, hardness, and weather resistance.

  2. High-performance industrial maintenance coatings for machinery, rail, and agricultural equipment.

  3. Premium architectural coatings for metal façades, aluminum composite panels (ACPs), and extruded profiles.

  4. Plastic coatings for automotive interior trim and electronic housings demanding low VOC and non-yellowing performance.

  5. Two-component polyurethane wood finishes for furniture and flooring applications.

Specifications Of Tosoh CORONATE HX-T Isocyanate Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based trimer/uretdione blend)
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt%)15.5–16.5%
Viscosity at 25°C (mPa·s)800–1,200
Density at 25°C (g/cm³)1.17–1.19
Flash Point (COC, °C)145–155
Storage Stability (unopened, 25°C)≥12 months


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