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

Tosoh CORONATE 2037 Curing Agent

Tosoh CORONATE 2037 Curing Agent is a low-viscosity aliphatic polyisocyanate hardener from the CORONATE series, designed for high-performance two-component polyurethane coatings. It offers excellent weather resistance, fast curing at room temperature, and superior gloss retention—ideal for automotive refinish, industrial maintenance, and premium protective coatings applications.
  • tosoh coronate 2037 curing agent_8d968dde
  • tosoh coronate 2037 curing agent_8d968dde

Features Of Tosoh CORONATE 2037 Curing Agent

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

  2. Low viscosity enables easy handling, precise metering, and improved compatibility with hydroxyl-functional resins.

  3. Provides fast ambient- and forced-dry cure profiles without requiring high-temperature baking.

  4. Delivers outstanding gloss retention, hardness development, and chemical resistance in final coatings.

  5. Compliant with major global VOC regulations for industrial coating applications.

Typical Applications Of Tosoh CORONATE 2037 Curing Agent

  1. Automotive OEM and refinish clearcoats and basecoats.

  2. High-performance industrial maintenance coatings for metal and plastic substrates.

  3. Precision electronics enclosures requiring durable, non-yellowing topcoats.

  4. Architectural aluminum extrusion and curtain wall finishing systems.

  5. Coil coatings where rapid line speed and excellent outdoor durability are critical.

Specifications Of Tosoh CORONATE 2037 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
VOC Content (g/L)< 200 (as supplied)
Primary ApplicationsTwo-component polyurethane coatings for automotive, industrial, and architectural use


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