Shin-Etsu KBM-303 (2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane) is an epoxy-functional silane coupling agent that enhances interfacial adhesion between organic polymers and inorganic substrates. It improves mechanical strength, moisture resistance, and electrical properties in composites, coatings, and adhesives. Compatible with thermoplastics, thermosets, and elastomers, it offers fast curing and solvent-free processing, making it ideal for demanding applications in electronics and structural materials
Dual Reactivity - Epoxy group bonds with resins; methoxy group links to glass/metals
Performance Boost - Enhances tensile strength, chemical/UV resistance, and dielectric properties
Process Efficiency - Low viscosity (1.06 g/cm³) for easy integration
Broad Compatibility - Works with epoxy, polyurethane, polyester, and nylon
Environmental Safety - REACH/RoHS compliant, suitable for waterborne systems
Electronic Encapsulation - Moisture-resistant sealing for PCBs
Aerospace Composites - Glass fiber treatment for lightweight FRP
Marine Coatings - Corrosion protection for metal substrates
Structural Adhesives - High-strength bonding in automotive
Industrial Inks - Durable printing on non-porous surfaces
Chemical Name | 2-(3,4-Epoxycyclohexyl)ethyltrimethoxysilane |
Appearance | Colorless to light yellow transparent liquid |
Active Content | ≥98% |
Viscosity | Low viscosity |
Density (25℃) | 1.063 g/ml |
Refractive Index (25℃) | 1.427 |
Boiling Point | 290℃ |
Flash Point | 149℃ |
Packaging | 16KG/drum |
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