Description

Vinyltriacetoxysilane is a versatile organosilicon coupling agent and crosslinker, widely recognized for its ability to enhance adhesion between inorganic materials and organic polymers. Its value lies in providing durable, water-resistant bonds and improving the mechanical properties of composite materials. This product is essential for manufacturers in the adhesives, sealants, coatings, and plastics industries seeking to improve product performance and longevity.

Application

• As a key adhesion promoter and crosslinking agent in silicone sealants and adhesives.
• To improve the bonding and water resistance of mineral-filled composites and fiberglass-reinforced plastics.
• As a surface treatment agent for glass fibers, minerals, and fillers to enhance compatibility with polymer matrices.
• In the formulation of moisture-curable resins and coatings for durable protective layers.
• As a crosslinker in the production of specialty silicones and modified polymers.
• For the priming of metal, glass, and concrete surfaces to promote paint and coating adhesion.
• In the manufacture of cable insulation and other electrical components requiring moisture resistance.

Basic Information

Product Name	Vinyltriacetoxysilane
CAS No.	4130-08-9
Molecular Formula	C8H12O6Si
Molecular Weight	232.26 g/mol
Synonyms	Vinyltriacetoxysilane; Triacetoxyvinylsilane; Ethenyltriacetoxysilane; VTAS; Silane, ethenyltriacetoxy-; Silane A-188; Dynasylan VTAC; KBE-1003; Z-6075
EINECS	223-934-0

Quality Control

Our Vinyltriacetoxysilane is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay and impurity profiling, to ensure it meets exacting industry standards. A Certificate of Analysis (COA) documenting purity, identity, and key physical properties is provided with every shipment to guarantee traceability and consistency for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.16 - 1.18 g/cm³
Refractive Index (n20D)	1.420 - 1.430
Acetic Acid Content	≤ 1.0%

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