Name: Evonik Dynasylan SILFIN 70 Vinylsilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan SILFIN 70 Vinylsilane

High-purity vinyltrimethoxysilane with ≥98.0% assay for reliable coupling performance.
Optimized hydrolytic stability for extended shelf life and consistent processing behavior.
Excellent compatibility with unsaturated polymers (e.g., EVA, SBR, EPDM) and inorganic fillers.
Enables strong covalent bonding between organic matrices and silica, glass, or mineral surfaces.
Low volatility and favorable handling characteristics under standard industrial conditions.

Typical Applications Of Evonik Dynasylan SILFIN 70 Vinylsilane

Surface modification of silica and silicates in rubber compounding (e.g., high-performance tires).
Coupling agent in glass-fiber reinforced thermoplastics and composites.
Adhesion promoter in automotive sealants and structural adhesives.
Functional additive in crosslinkable polyethylene (PE-Xa) cable and pipe manufacturing.
Enhancer of filler dispersion and interfacial strength in filled elastomers and thermosets.

Chemical Type	Vinyltrimethoxysilane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Assay (GC)	≥98.0%
Density at 20 °C	0.965–0.975 g/cm³
Refractive Index at 20 °C	1.392–1.396
Boiling Range	195–205 °C
Storage Stability	≥12 months in unopened original container at ≤25 °C

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E-mail: wangxingqiang@ericwchem.com
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