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

Youmai L75 Curing Agent

Youmai L75 Curing Agent is a high-performance aliphatic polyamine hardener from Youmai’s L-series, engineered for rapid ambient-cure epoxy systems. It delivers excellent chemical resistance, low viscosity, and superior adhesion to concrete and steel—ideal for industrial flooring, marine coatings, and protective linings. Low odor and extended pot life enhance user safety and application flexibility.
  • youmai l75 curing agent_db04c639
  • youmai l75 curing agent_db04c639

Features Of Youmai L75 Curing Agent

  1. High reactivity with epoxy resins, enabling rapid room-temperature cure.

  2. Excellent chemical resistance post-cure, including resistance to solvents and weak acids.

  3. Low viscosity for easy handling, mixing, and improved filler dispersion in formulations.

  4. Low volatility and negligible volatile organic compound (VOC) emission — compliant with industrial safety standards.

  5. Good thermal stability, supporting long-term performance in applications up to 120 °C continuous service temperature.

Typical Applications Of Youmai L75 Curing Agent

  1. Structural adhesives for automotive and aerospace bonding assemblies.

  2. Electrical encapsulation and potting compounds for PCB protection and high-voltage insulation.

  3. High-performance coatings for industrial flooring and corrosion-resistant tank linings.

  4. Composite matrix resins in wind turbine blade manufacturing and pultruded profiles.

  5. Repair mortars and grouts requiring fast strength development and dimensional stability.

Specifications Of Youmai L75 Curing Agent

Chemical TypeAmine-based aliphatic polyamine adduct
Product FormLiquid
AppearancePale yellow to amber clear liquid
Density (25 °C)0.92–0.95 g/cm³
Viscosity (25 °C)200–400 mPa·s
Amine Value380–420 mg KOH/g
Primary ApplicationsEpoxy resin curing for adhesives, coatings, composites, and encapsulants
Key FeaturesRapid ambient cure, low exotherm, good flexibility, and moisture tolerance


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