Name: Evonik Dynasylan VTMOEO Vinyl tris(2-methoxyethoxy)silane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan VTMOEO Vinyl tris(2-methoxyethoxy)silane

Highly hydrolytically stable due to ether-functional alkoxy groups, enabling extended shelf life and processing window.
Reactive vinyl group enables covalent bonding with organic polymers during curing or thermal treatment.
Low volatility and favorable handling characteristics compared to short-chain alkoxysilanes.
Excellent compatibility with acrylics, polyesters, epoxies, and unsaturated polyester resins.
Acts as an effective coupling agent for silica, glass, and mineral fillers in composite formulations.

Typical Applications Of Evonik Dynasylan VTMOEO Vinyl tris(2-methoxyethoxy)silane

Adhesion promotion in automotive sealants and structural adhesives.
Surface modification of fumed silica and precipitated silica for rheology control in coatings and sealants.
Filler coupling in fiber-reinforced composites (e.g., GFRP) for improved mechanical performance.
Hybrid sol-gel precursor in UV- and thermally curable hybrid coatings.
Moisture-scavenging additive in moisture-sensitive polymer systems and encapsulation resins.

Chemical Type	Vinyl-functional trialkoxysilane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Density (20 °C)	1.03–1.05 g/cm³
Refractive Index (20 °C)	1.420–1.430
Viscosity (25 °C)	3–6 mPa·s
Flash Point (PMCC)	≈ 110 °C
Solubility	Miscible with common organic solvents (e.g., alcohols, esters, ketones); hydrolyzes in water

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