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

Wacker FC 223 Functional Silicone Fluid

Wacker FC 223 is a functional silicone fluid from Wacker’s FC series, featuring reactive amino-terminated polydimethylsiloxane chemistry. It serves as a high-performance modifier for coatings, adhesives and sealants—enhancing substrate wetting, interfacial adhesion and compatibility with organic polymers while maintaining thermal stability and low surface tension.
  • wacker fc 223 functional silicone fluid_0469933d
  • wacker fc 223 functional silicone fluid_0469933d

Features Of Wacker FC 223 Functional Silicone Fluid

  1. Highly reactive amino-functional silicone with excellent compatibility in aqueous and solvent-based systems.

  2. Provides superior substrate wetting, adhesion promotion, and surface modification for polar materials.

  3. Enables covalent bonding to resins, coatings, and fillers via its primary amine groups.

  4. Offers outstanding thermal stability and hydrolytic resistance under standard processing conditions.

  5. Low volatility and non-yellowing performance ensure long-term clarity and color stability in end products.

Typical Applications Of Wacker FC 223 Functional Silicone Fluid

  1. Adhesion promoters in automotive sealants and structural adhesives.

  2. Surface modifiers for mineral-filled composites and glass-fiber reinforced plastics (GFRP).

  3. Compatibilizers in polyurethane, epoxy, and acrylic resin formulations.

  4. Functional additives in high-performance industrial coatings and primers.

  5. Hybrid coupling agents for silicone-acrylic or silicone-polyester hybrid systems.

Specifications Of Wacker FC 223 Functional Silicone Fluid

Chemical TypeAmino-functional polydimethylsiloxane (primary amine)
Product FormClear, mobile liquid
AppearanceColorless to pale yellow, transparent liquid
Amine Value1.8–2.2 mmol/g
Viscosity (25 °C)300–500 mPa·s
Density (20 °C)0.97–0.99 g/cm³
Refractive Index (25 °C)1.405–1.415
Flash Point (PMCC)>110 °C


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