Name: Evonik Dynasylan VOS Vinyltributanone oxime silane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan VOS Vinyltributanone oxime silane

Reactive vinyl functionality enables covalent bonding to organic polymers during curing.
Oxime-based alkoxy groups provide excellent hydrolytic stability and extended pot life versus acetoxysilanes.
Efficient adhesion promotion between inorganic substrates (e.g., glass, metals, minerals) and organic matrices.
Low volatility and reduced odor compared to traditional amino- or mercapto-silanes.
Enables one-component, moisture-cure formulations without releasing corrosive by-products.

Typical Applications Of Evonik Dynasylan VOS Vinyltributanone oxime silane

Adhesion promoters in silicone sealants and RTV elastomers.
Surface modifiers for silica fillers in high-performance rubber compounds.
Hybrid coupling agents in sol-gel derived organic-inorganic coatings.
Functional additives in vinyl ester and unsaturated polyester resins.
Performance enhancers in fiber-reinforced composites (e.g., glass fiber sizing).

Chemical Type	Vinyl-functional oxime silane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Primary Applications	Adhesion promotion, filler surface treatment, hybrid polymer synthesis
Key Features	Hydrolytically stable, vinyl-reactive, low-odor, non-corrosive cure chemistry
Benefits	Improved interfacial adhesion, enhanced composite durability, extended formulation shelf life
Molecular Weight (approx.)	284.5 g/mol
Specific Gravity (20 °C)	0.94–0.96 g/cm³

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