Momentive SILQUEST A-187 (γ-glycidoxypropyltrimethoxysilane) is an epoxy-functional silane coupling agent that enhances adhesion between organic resins (epoxy, acrylic) and inorganic substrates (glass, metals). Its rapid hydrolysis forms durable siloxane bonds, improving wet adhesion (>90% retention) and mechanical strength. Ideal for FRP, coatings, and adhesives, it complies with REACH/RoHS and reduces viscosity for easier processing. Applications include automotive composites, waterproof coatings, and cable insulation
Interfacial Reinforcement - Epoxy groups bond with resins; methoxy links to fillers/fibers, optimizing stress transfer
Process Efficiency - Low viscosity (3 cSt) ensures homogeneous dispersion in formulations
Durability - Enhances UV/chemical resistance (salt spray >1,000 hours) in harsh environments
Multi-Matrix Compatibility - Works with polyurethane, polysulfide, and acrylic system
FRP Composites - Glass fiber sizing for automotive/construction (30% strength increase)
Wire Insulation - Clay-filled EPDM systems with improved dielectric properties
Industrial Coatings - Metal primers with corrosion resistance
Chemical Name | γ-Glycidoxypropyltrimethoxysilane |
Appearance | Colorless to light yellow transparent liquid |
Molecular Weight | 236 |
Specific Gravity (25/25℃) | 1.07 |
Flash Point (Closed Cup) | >101℃ |
Active Content | >98% |
Packaging | 20KG/drum |
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