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

BASF HB275B HDI Curing Agent

BASF HB275B HDI Curing Agent is a high-performance aliphatic polyisocyanate crosslinker from BASF’s Baxxodur® series, designed for premium two-component polyurethane coatings. It delivers excellent weather resistance, low viscosity, and fast cure at ambient temperatures—ideal for automotive refinish, industrial maintenance, and plastic coatings requiring gloss retention and UV stability.
  • basf hb275b hdi curing agent_bd8bc48d
  • basf hb275b hdi curing agent_bd8bc48d

Features Of BASF HB275B HDI Curing Agent

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

  2. Excellent weather resistance and UV stability for long-term gloss and color retention.

  3. Low viscosity formulation enabling easy handling, efficient mixing, and superior flow/leveling in coatings.

  4. Compatible with a broad range of hydroxyl-functional resins including polyesters, acrylics, and polyols.

  5. Meets stringent VOC regulations with low monomer content and high functionality efficiency.

Typical Applications Of BASF HB275B HDI Curing Agent

  1. Automotive OEM and refinish clearcoats and basecoats.

  2. Industrial maintenance coatings for machinery, agricultural equipment, and construction vehicles.

  3. High-end architectural coatings requiring durability and aesthetic performance.

  4. Plastic coatings for automotive interior and exterior trim components.

  5. Wood coatings for premium furniture and flooring applications.

Specifications Of BASF HB275B HDI Curing Agent

Chemical TypeAliphatic HDI trimer-based polyisocyanate
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt %)19.5 – 20.5
Viscosity (25 °C, mPa·s)1,800 – 2,400
Functionality (avg.)~3.2
Density (20 °C, g/cm³)1.18 – 1.22
SolventAcetate-based (e.g., butyl acetate)


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