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

Tosoh CORONATE HXLV Curing Agent

Tosoh CORONATE HXLV is a high-performance aliphatic polyisocyanate curing agent from the CORONATE series, designed for premium two-component polyurethane coatings. It offers excellent weather resistance, low viscosity, fast curing at ambient temperatures, and superior gloss retention—ideal for automotive refinish, industrial maintenance, and high-end architectural applications requiring durability and clarity.
  • tosoh coronate hxlv curing agent_547137fb
  • tosoh coronate hxlv curing agent_547137fb

Features Of Tosoh CORONATE HXLV Curing Agent

  1. Low-viscosity aliphatic polyisocyanate curing agent based on hexamethylene diisocyanate (HDI) trimer chemistry.

  2. Excellent weather resistance and UV stability, enabling long-term gloss and color retention in exterior coatings.

  3. Fast ambient-cure capability with balanced reactivity—ideal for high-throughput industrial coating lines.

  4. Low monomeric HDI content (<0.5 wt%), meeting stringent occupational health and safety requirements.

  5. Compatible with a broad range of hydroxyl-functional acrylics, polyesters, and alkyds without potlife compromise.

Typical Applications Of Tosoh CORONATE HXLV Curing Agent

  1. Automotive OEM clearcoats and basecoats requiring high durability and low-VOC compliance.

  2. Industrial maintenance coatings for metal substrates in architectural and infrastructure projects.

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

  4. Premium wood finishes for furniture and flooring demanding scratch resistance and clarity.

  5. Aerospace non-structural interior coatings where low outgassing and thermal stability are critical.

Specifications Of Tosoh CORONATE HXLV Curing Agent

Chemical TypeAliphatic HDI-based polyisocyanate (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
Monomeric HDI Content< 0.5 wt%
Primary Applications2K polyurethane topcoats for automotive, industrial, and specialty coatings


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