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

Evonik Epoxy Curing Agent UR-41

Evonik Epoxy Curing Agent UR-41 is a high-performance aliphatic amine-based hardener from Evonik’s Vestamin® UR series, engineered for fast-curing, low-viscosity epoxy systems with excellent chemical resistance, flexibility and adhesion to damp substrates—ideal for industrial coatings, flooring and repair mortars.
  • evonik epoxy curing agent ur 41_9fd6e377
  • evonik epoxy curing agent ur 41_9fd6e377

Features Of Evonik Epoxy Curing Agent UR-41

  1. Fast-reacting aliphatic amine-based curing agent enabling short demolding cycles.

  2. Excellent compatibility with standard liquid epoxy resins (e.g., DGEBA types).

  3. Delivers high glass transition temperature (Tg) and superior mechanical strength in cured systems.

  4. Low viscosity for easy handling, metering, and homogeneous mixing at ambient temperature.

  5. Good chemical resistance post-cure, particularly to solvents and weak acids.

Typical Applications Of Evonik Epoxy Curing Agent UR-41

  1. Precision casting of electrical insulators and encapsulation of electronic components.

  2. Structural adhesives for automotive and transportation assembly.

  3. High-performance composites in wind energy blade bonding and repair.

  4. Tooling and mold-making compounds requiring rapid turnaround and dimensional stability.

  5. Industrial flooring and grouting systems demanding fast return-to-service.

Specifications Of Evonik Epoxy Curing Agent UR-41

Chemical TypeAliphatic polyamine
Product FormLiquid
AppearanceClear, pale yellow to amber liquid
Primary ApplicationsReactive hot-melt adhesives, casting, encapsulation, structural bonding
Key FeaturesFast cure, low exotherm, high Tg, low viscosity
BenefitsImproved productivity, excellent adhesion to metals and composites, reduced energy consumption
Storage Stability≥12 months in sealed original container at 15–25 °C
Handling PrecautionsUse in well-ventilated areas; wear nitrile gloves and eye protection


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