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

Asahi KASEI TKA-75B HDI Curing Agent

AsahiKASEITKA-75Bisahigh-performancealiphaticHDI-basedpolyasparticcuringagentfromtheTKAseries,offeringrapidcure,excellentUVresistance,flexibility,andlowviscosity.Idealforhigh-solidand2Kcoatingsinautomotive,industrial,andprotectiveapplications.Ensuressuperiorsurfacehardness,glossretention,andchemicalresistancewithreducedVOCemissions.
  • asahi kasei tka 75b hdi curing agent_d89e068d
  • asahi kasei tka 75b hdi curing agent_d89e068d

Features Of Asahi KASEI TKA-75B HDI Curing Agent

  1. High-performance aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry.

  2. Low viscosity and excellent compatibility with common hydroxyl-functional resins, enabling easy formulation and processing.

  3. Outstanding weather resistance, UV stability, and gloss retention in demanding outdoor applications.

  4. Low monomeric HDI content (< 0.1 wt%), supporting safer handling and compliance with stringent occupational health regulations.

  5. Fast ambient- and forced-dry cure profile without compromising pot life or film integrity.

Typical Applications Of Asahi KASEI TKA-75B HDI Curing Agent

  1. Automotive clearcoats and basecoats requiring high durability and color fidelity.

  2. Industrial maintenance coatings for metal structures, machinery, and agricultural equipment.

  3. Architectural coatings for aluminum extrusions, façade panels, and curtain walls.

  4. Plastic coatings for automotive interior trim and consumer electronics housings.

  5. High-end wood finishes for furniture and flooring where clarity and scratch resistance are critical.

Specifications Of Asahi KASEI TKA-75B HDI Curing Agent

Chemical TypeAliphatic HDI-based polyisocyanate (trimer)
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt%)17.0 – 18.0
Viscosity at 25°C (mPa·s)1,200 – 1,800
Density at 25°C (g/cm³)1.16 – 1.19
Monomeric HDI Content< 0.1 wt%
SolventAcetate-based (e.g., butyl acetate)


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