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

Tosoh CORONATE 2770 Curing Agent

Tosoh CORONATE 2770 Curing Agent is a low-viscosity aliphatic polyisocyanate hardener in the CORONATE series, designed for high-performance two-component polyurethane coatings. It offers excellent weather resistance, gloss retention, and rapid cure at ambient temperatures—ideal for automotive refinishes and industrial topcoats requiring ISO-compliant durability and low VOC emissions.
  • tosoh coronate 2770 curing agent_b8775009
  • tosoh coronate 2770 curing agent_b8775009

Features Of Tosoh CORONATE 2770 Curing Agent

  1. Aliphatic polyisocyanate-based curing agent offering excellent weather resistance and UV stability.

  2. Low-viscosity liquid formulation enabling easy handling, precise metering, and efficient mixing with hydroxyl-functional resins.

  3. Fast-reacting at ambient and elevated temperatures, supporting rapid cure development without compromising film integrity.

  4. Provides outstanding chemical resistance, including resistance to solvents, acids, and alkalis in cured coatings.

  5. Compliant with major global VOC regulations, supporting sustainable industrial coating formulations.

Typical Applications Of Tosoh CORONATE 2770 Curing Agent

  1. Automotive OEM and refinish clearcoats requiring high gloss and long-term durability.

  2. Industrial maintenance coatings for metal structures, bridges, and offshore equipment.

  3. High-performance plastic coatings for automotive interior and exterior trim components.

  4. Powder coating hybrid systems where enhanced flexibility and impact resistance are critical.

  5. Architectural metal coatings for façades, roofing, and cladding exposed to harsh environmental conditions.

Specifications Of Tosoh CORONATE 2770 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate trimer)
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)1.18 – 1.22
Flash Point (PMCC, °C)145 – 155
Primary ApplicationsTwo-component polyurethane coatings (clearcoats, topcoats, industrial finishes)


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