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

Rodia TOLONATE HDT-90 Curing Agent

Rodia TOLONATE HDT-90 Curing Agent is a high-performance aliphatic polyisocyanate from the TOLONATE® series by Covestro (formerly Rhodia). It serves as a low-viscosity, HDI-based crosslinker for premium 2K polyurethane coatings—ideal for automotive refinish, industrial maintenance, and high-gloss topcoats requiring excellent weather resistance, clarity, and fast curing.
  • rodia tolonate hdt 90 curing agent_98746691
  • rodia tolonate hdt 90 curing agent_98746691

Features Of Rodia TOLONATE HDT-90 Curing Agent

  1. Aliphatic polyisocyanate-based curing agent offering excellent UV resistance and color stability.

  2. Low-viscosity liquid formulation enabling easy handling, precise metering, and efficient mixing with hydroxyl-functional resins.

  3. Provides rapid ambient-cure performance while maintaining extended pot life for industrial coating applications.

  4. Compliant with major global VOC regulations, supporting sustainable coating system design.

  5. Delivers superior hardness, chemical resistance, and gloss retention in final cured films.

Typical Applications Of Rodia TOLONATE HDT-90 Curing Agent

  1. Automotive clearcoats and refinish topcoats requiring high durability and optical clarity.

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

  3. High-performance plastic coatings where flexibility and adhesion to ABS/PC are critical.

  4. Wood finishing systems demanding fast throughput and low-temperature cure capability.

  5. General-purpose two-component polyurethane (2K PU) protective coatings for architectural and transportation sectors.

Specifications Of Rodia TOLONATE HDT-90 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate trimer)
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt%)Approx. 13.5–14.5%
Viscosity at 25°C (mPa·s)250–450
Density at 25°C (g/cm³)1.18–1.22
Flash Point (PMCC, °C)145–155
Storage Stability≥12 months in original unopened container at 15–25°C


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