Description

Triethoxyvinylsilane is a versatile organosilicon compound widely used as a key coupling agent and surface modifier. Its unique molecular structure, featuring both hydrolyzable ethoxy groups and a polymerizable vinyl group, enables it to form durable bonds between inorganic materials and organic polymers. This product is essential for manufacturers in the adhesives, coatings, composites, and rubber industries seeking to enhance material performance, adhesion, and durability. Its role in cross-linking and improving the compatibility of dissimilar materials makes it a critical component in advanced material formulations.

Application

• As a coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve mechanical strength and moisture resistance.
• As a surface treatment agent for glass, silica, and metals to promote adhesion of paints, inks, and adhesives.
• As a cross-linking agent and modifier in silicone rubber and room-temperature vulcanizing (RTV) silicone formulations.
• As a key monomer or intermediate in the synthesis of specialized silicone resins and hybrid organic-inorganic polymers.
• For the hydrophobic treatment of construction materials like concrete and stone to provide water repellency.
• In the production of moisture-curable sealants and coatings where it contributes to cross-linking and substrate bonding.
• As an adhesion promoter in tire manufacturing and other rubber-to-fabric or rubber-to-metal bonding applications.

Basic Information

Product Name	Triethoxyvinylsilane
CAS No.	78-08-0
Molecular Formula	C8H18O3Si
Molecular Weight	190.31 g/mol
Synonyms	Vinyltriethoxysilane; VTES; Ethenyltriethoxysilane; Triethoxyethenylsilane; Silane, triethoxyvinyl-; A-151; Dynasylan VTEO; KBE-1003; Z-6300
EINECS	201-081-7

Quality Control

Our Triethoxyvinylsilane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed against stringent internal specifications using advanced analytical techniques such as gas chromatography (GC) and infrared spectroscopy (IR). A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and degradation upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.395 - 1.400
Density (20°C)	0.90 - 0.92 g/mL
Color (APHA)	≤ 15

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.