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

Tosoh CORONATE MX Curing Agent

Tosoh CORONATE MX Curing Agent is a high-performance aliphatic polyisocyanate crosslinker from Tosoh’s CORONATE series, designed for premium two-component polyurethane coatings. It offers excellent weather resistance, low viscosity, and fast curing at room temperature—ideal for automotive refinish, industrial maintenance, and high-gloss topcoats requiring superior gloss retention and chemical durability.
  • tosoh coronate mx curing agent_6bb9d02b
  • tosoh coronate mx curing agent_6bb9d02b

Features Of Tosoh CORONATE MX Curing Agent

  1. Highly reactive aliphatic isocyanate-based curing agent for fast ambient- and low-bake-cure systems.

  2. Excellent compatibility with hydroxyl-functional acrylics, polyesters, and polyester-acrylic hybrids.

  3. Low viscosity enables easy handling, precise metering, and improved formulation stability.

  4. Provides superior gloss retention, weather resistance, and mechanical durability in finished coatings.

  5. Meets stringent VOC regulations with minimal monomeric HDI content and no added solvents.

Typical Applications Of Tosoh CORONATE MX Curing Agent

  1. Automotive OEM clearcoats and basecoats requiring high-speed production line cure.

  2. Industrial maintenance coatings for metal substrates exposed to outdoor environments.

  3. High-performance plastic coatings for automotive trim and electronic housings.

  4. Powder coating hybrid systems where liquid curing agents enhance flow and film formation.

Specifications Of Tosoh CORONATE MX Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based trimer)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
NCO Content (wt%)18.5 – 19.5%
Viscosity at 25°C (mPa·s)1,200 – 1,800
Density at 25°C (g/cm³)1.16 – 1.19
Primary ApplicationsTwo-component polyurethane coatings for automotive and industrial use
Storage Stability≥12 months at 15–25°C in sealed container


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