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

Shin-Etsu KBM-603 Silane Coupling Agent

Shin-Etsu KBM-603 (3-mercaptopropyltrimethoxysilane) is a thiol-functional coupling agent that enhances interfacial adhesion and reduces viscosity in polymer systems. Its reactive mercapto group enables covalent bonding with organic matrices, while methoxy groups ensure inorganic substrate compatibility. Ideal for coatings, adhesives, and composites, it improves mechanical strength, chemical resistance, and processing efficiency. The formulation supports fast curing at ambient temperatures and complies with REACH/RoHS standards

Features Of Shin-Etsu KBM-603 Silane Coupling Agent

  1. Dual Reactivity - Thiol group bonds with polymers; methoxy links to fillers/glass

  2. Viscosity Control - Reduces system viscosity for easier processing

  3. Durability Boost - Enhances UV/chemical resistance in harsh environments

  4. Multi-Matrix Compatibility - Effective with epoxy, polyurethane, and acrylics

  5. Sustainable Solution - Halogen-free, meeting global eco-standards

Typical Applications Of Shin-Etsu KBM-603 Silane Coupling Agent

  1. Rubber Compounding - Filler treatment for SBR/NBR to improve tensile strength

  2. Electronic Encapsulants - Moisture-resistant sealing for circuit components

  3. Marine Coatings - Corrosion protection for metal substrates

  4. Adhesive Formulations - Enhanced bonding strength for structural applications

  5. Glass Fiber Treatment - Surface modification for FRP reinforcement

Specifications Of Shin-Etsu KBM-603 Silane Coupling Agent

Chemical Name
N-β-(Aminoethyl)-γ-aminopropyltrimethoxysilane
Appearance
Colorless to light yellow transparent liquid
Active Content
≥97%
Viscosity
Low viscosity
Density (20℃)
1.028 g/ml
Refractive Index (25℃)
1.4425~1.4460
Boiling Point
261℃~263℃
Flash Point
138℃
Packaging
190KG/drum


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