Name: Evonik Dynasylan VTMO Vinyltrimethoxysilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan VTMO Vinyltrimethoxysilane

Reactive vinyl group enables covalent bonding with organic polymers during curing or polymerization.
Three hydrolyzable methoxy groups provide strong, durable adhesion to inorganic substrates such as glass, metals, and fillers.
Improves mechanical properties—including tensile strength, elongation, and impact resistance—in filled composites and elastomers.
Enhances dispersion stability of inorganic fillers (e.g., silica, calcium carbonate) in vinyl-based and unsaturated polyester systems.
Low volatility and good storage stability under recommended conditions (cool, dry, sealed container).

Typical Applications Of Evonik Dynasylan VTMO Vinyltrimethoxysilane

Adhesion promoter in silicone rubber compounds for improved filler–polymer interface.
Surface modifier for mineral fillers in PVC, polyolefin, and thermoplastic elastomer compounds.
Coupling agent in fiber-reinforced plastics (FRP), especially vinyl ester and unsaturated polyester resins.
Functional additive in pressure-sensitive adhesives (PSAs) based on acrylics or rubbers to boost cohesion and substrate adhesion.
Primer component for glass, aluminum, and stainless steel substrates prior to coating or bonding.

Chemical Type	Organofunctional silane (vinyltrimethoxysilane)
Product Form	Liquid
Appearance	Clear, colorless to pale yellow liquid
Density (20 °C)	0.96–0.98 g/cm³
Refractive Index (20 °C)	1.395–1.405
Boiling Point (1013 hPa)	155–160 °C
Flash Point (PMCC)	47 °C
Solubility	Miscible with common organic solvents (e.g., ethanol, acetone, toluene); hydrolyzes in water

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