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

Evonik BF1540 Isocyanate Curing Agent

Evonik’s BF1540 is a high-performance aliphatic polyisocyanate curing agent from the Vestagon® series, offering excellent UV stability, low viscosity, and fast cure at room temperature—ideal for premium coatings, adhesives, and elastomers requiring superior weather resistance and gloss retention.
  • evonik bf1540 isocyanate curing agent_f81f976f
  • evonik bf1540 isocyanate curing agent_f81f976f

Features Of Evonik BF1540 Isocyanate Curing Agent

  1. Aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI) trimer chemistry.

  2. Low-viscosity liquid offering excellent compatibility with common polyol resins and ease of handling in industrial coating systems.

  3. Provides outstanding UV stability and color retention in demanding outdoor applications.

  4. Enables fast ambient-cure or forced-dry performance with balanced pot life and film formation.

  5. Compliant with REACH and meets stringent VOC regulations for high-performance industrial coatings.

Typical Applications Of Evonik BF1540 Isocyanate Curing Agent

  1. Automotive OEM and refinish clearcoats requiring gloss, hardness, and weather resistance.

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

  3. High-end architectural façade coatings exposed to prolonged solar irradiation.

  4. Precision plastic coatings for electronics housings and consumer appliances.

  5. Two-component polyurethane floor coatings in commercial and industrial settings.

Specifications Of Evonik BF1540 Isocyanate Curing Agent

Chemical TypeAliphatic HDI-based polyisocyanate (trimer)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent
NCO Content (wt %)21.5–22.5%
Viscosity at 25°C (mPa·s)800–1,200
Density at 20°C (g/cm³)1.19–1.21
VOC Content (g/L)<100 (as per EU Directive 2004/42/EC)
Storage Stability12 months minimum at 15–25°C in sealed containers


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