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

Shin-Etsu KBE-903 Silane Coupling Agent

Shin-Etsu KBE-903 (3-aminopropyltriethoxysilane) is a bifunctional silane coupling agent that bridges organic polymers and inorganic substrates via amino and ethoxy reactive groups. It enhances adhesion, mechanical strength, and environmental resistance in coatings, inks, and composites while improving filler dispersion. This colorless liquid offers fast hydrolysis and compatibility with diverse resins, including epoxy, acrylic, and rubber systems

Features Of Shin-Etsu KBE-903 Silane Coupling Agent

  1. Dual Reactivity - Amino groups bond with organics; ethoxy groups link to glass/metals

  2. Performance Enhancement - Boosts wet/dry strength and electrical properties in composites

  3. Moisture Resistance - Improves hydrolytic stability in humid environments

  4. Multi-Matrix Compatibility - Effective with thermoplastics, thermosets, and elastomers

  5. Processing Efficiency - Low viscosity for easy mixing and application

Typical Applications Of Shin-Etsu KBE-903 Silane Coupling Agent

  1. Coatings/Inks - Adhesion promoter for acrylic paints and metal primers

  2. Composite Interfaces - Glass fiber reinforcement in epoxy/phenolic resins

  3. Sealants/Adhesives - Binder for polysulfide, silicone rubber, and epoxy

  4. Rubber Compounding - Filler treatment in nitrile/neoprene rubber

  5. Electronic Encapsulation - Moisture-resistant protective coating

Specifications Of Shin-Etsu KBE-903 Silane Coupling Agent

Chemical Name
γ-Aminopropyltriethoxysilane
Molecular Formula
NH₂(CH₂)₃Si(OC₂H₅)₃
Molecular Weight
221.4
Appearance
Colorless Transparent Liquid
Flash Point
96℃ - 103℃
Density (25℃)
0.940 - 0.946
Refractive Index (25℃)
1.414 - 1.421
Boiling Point
217℃
CAS Number
919 - 30 - 2


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