Name: Evonik Dynasylan SILFIN 50 Vinylsilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan SILFIN 50 Vinylsilane

High-purity vinyltrimethoxysilane (VTMO) in 50% active content solution.
Excellent hydrolytic stability due to optimized solvent formulation (ethanol/water blend).
Promotes strong covalent bonding between inorganic substrates (e.g., glass, silica, metals) and organic polymers.
Enables efficient surface modification of fillers and reinforcements in composite systems.
Low volatility and favorable handling characteristics compared to neat silane monomers.

Typical Applications Of Evonik Dynasylan SILFIN 50 Vinylsilane

Glass fiber sizing for thermoset and thermoplastic composites.
Surface treatment of mineral fillers (e.g., calcium carbonate, talc) in polyolefin compounds.
Adhesion promotion in silicone-modified acrylic sealants and coatings.
Moisture-curable polymer formulations including silane-terminated polyethers (MS Polymers).
Reinforcement coupling agent in rubber compounds containing silica or silicates.

Chemical Type	Vinyltrimethoxysilane (VTMO) solution
Product Form	Liquid
Appearance	Clear, colorless to pale yellow liquid
Active Content	Approx. 50 wt.% VTMO
Solvent System	Ethanol/water mixture
Density (20 °C)	Approx. 0.87–0.89 g/cm³
pH (10% aqueous solution)	4.5–6.5
Storage Stability	≥12 months at 5–25 °C in sealed container

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