Name: Dow Corning Z-6121 Silane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow Corning Z-6121 Silane

Bifunctional silane coupling agent with vinyl and methoxy groups for enhanced interfacial adhesion.
Hydrolytically stable in neutral to mildly acidic formulations, enabling extended shelf life in aqueous systems.
Promotes strong covalent bonding between organic polymers and inorganic substrates such as glass, silica, and metals.
Low volatility and favorable handling characteristics compared to chlorosilane alternatives.
Compatible with free-radical polymerization processes, supporting use in vinyl-based resins and coatings.

Typical Applications Of Dow Corning Z-6121 Silane

Glass fiber sizing for reinforced thermoset composites (e.g., polyester, vinyl ester, epoxy).
Adhesion promoter in silicone-modified acrylic and polyurethane sealants and caulks.
Surface modifier for mineral fillers and pigments in automotive and industrial coatings.
Performance enhancer in rubber-to-metal bonding systems for vibration-damping components.
Functional additive in moisture-curable RTV silicones and hybrid polymer sealants.

Chemical Type	Vinyltrimethoxysilane
Product Form	Liquid
Appearance	Clear, colorless to pale yellow liquid
Primary Applications	Coupling agent for glass fibers, mineral fillers, and metal surfaces
Key Features	Bifunctional coupling; hydrolytic stability; polymer compatibility; low odor
Benefits	Improved mechanical strength, moisture resistance, and long-term durability of composites and adhesives
Molecular Weight	148.2 g/mol
Refractive Index (25°C)	1.392–1.396

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