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

Fine-Blend CMG5805 Toughener

Fine-Blend CMG5805 Toughener is a high-performance reactive liquid modifier from the Fine-Blend series by Jiangsu Zhongke Fine Chemical Co., Ltd. Designed for epoxy resins, it enhances impact resistance, fracture toughness, and thermal stability without compromising viscosity or cure kinetics. Its low volatility and excellent compatibility enable broad application in composites, adhesives, and aerospace coatings.
  • fine blend cmg5805 toughener_3d9c8fd6
  • fine blend cmg5805 toughener_3d9c8fd6

Features Of Fine-Blend CMG5805 Toughener

  1. Reactive liquid elastomer designed for high-impact modification of thermoset resins.

  2. Enables significant improvement in fracture toughness without compromising glass transition temperature (Tg).

  3. Excellent compatibility with epoxy, vinyl ester, and unsaturated polyester resin systems.

  4. Low viscosity facilitates easy dispersion and processing via standard mixing equipment.

  5. Halogen-free formulation supports compliance with RoHS and REACH regulatory requirements.

Typical Applications Of Fine-Blend CMG5805 Toughener

  1. Aerospace composite tooling and structural components.

  2. Wind turbine blade matrices requiring enhanced delamination resistance.

  3. High-performance printed circuit board (PCB) laminates and encapsulants.

  4. Automotive under-hood composites exposed to thermal cycling and mechanical stress.

  5. Marine-grade pultruded profiles and infusion-molded hull reinforcements.

Specifications Of Fine-Blend CMG5805 Toughener

Chemical TypeFunctionalized carboxyl-terminated liquid rubber
Product FormFree-flowing liquid
AppearancePale amber, transparent to slightly hazy
Primary ApplicationsEpoxy and vinyl ester resin toughening
Key FeaturesReactive, low-viscosity, halogen-free
BenefitsImproved crack resistance, retained Tg, simplified processing
Density (25°C)Approx. 1.02–1.05 g/cm³
Storage Stability12 months at ≤25°C in unopened original container


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