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

Tosoh CORONATE 1335 Curing Agent

Tosoh CORONATE 1335 Curing Agent is a low-viscosity aliphatic polyisocyanate from Tosoh’s CORONATE series, designed for high-performance two-component polyurethane coatings. It offers excellent weather resistance, fast cure speed, and superior gloss retention—ideal for automotive clearcoats and industrial finishes requiring ISO 9001-compliant consistency and low VOC emissions.
  • tosoh coronate 1335 curing agent_1d1831f7
  • tosoh coronate 1335 curing agent_1d1831f7

Features Of Tosoh CORONATE 1335 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- or low-bake cure profiles without compromising film hardness or chemical resistance.

  4. Non-yellowing formulation ideal for high-gloss topcoats and clear finishes requiring long-term clarity.

  5. Complies with major global VOC regulations, supporting sustainable coating system development.

Typical Applications Of Tosoh CORONATE 1335 Curing Agent

  1. Automotive OEM and refinish clearcoats.

  2. High-performance industrial maintenance coatings for infrastructure and machinery.

  3. Premium architectural coatings for façades and curtain walls.

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

  5. Wood coatings requiring exceptional gloss retention and scratch resistance.

Specifications Of Tosoh CORONATE 1335 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate trimer)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
NCO Content (wt%)13.0–14.0%
Viscosity at 25°C (mPa·s)800–1,200
Density at 25°C (g/cm³)1.19–1.22
SolventAcetate-based (e.g., ethyl acetate, butyl acetate)
Primary Applications2K polyurethane topcoats and clearcoats


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