Description

Oligo-Vinyltrimethoxysilane is a specialized organosilicon compound, a reactive oligomer of vinyltrimethoxysilane. This product serves as a highly effective coupling agent and surface modifier, bridging organic polymers and inorganic substrates. It is essential for industries requiring enhanced adhesion, durability, and water resistance in composite materials and coatings. Key users include manufacturers in the silicone rubber, adhesives, sealants, and advanced resin sectors.

Application

• As a crosslinking agent and adhesion promoter in silicone rubber and RTV sealants.
• Surface treatment for fillers (e.g., silica, glass fibers) to improve dispersion and bonding in polymer composites.
• A key intermediate in the synthesis of modified silanes and specialty silicone resins.
• Used as a coupling agent in mineral-filled thermoplastics and thermosets to enhance mechanical properties.
• Improves the water repellency and weathering resistance of construction materials and coatings.
• Facilitates bonding between organic polymers and inorganic surfaces in adhesive formulations.

Basic Information

Product Name	Oligo-Vinyltrimethoxysilane
CAS No.	68440-92-6
Molecular Formula	(C5H12O3Si)n
Molecular Weight	Varies (oligomeric mixture)
Synonyms	Vinyltrimethoxysilane oligomer; Oligomeric vinyltrimethoxysilane; VTMO oligomer; Poly(vinyltrimethoxysilane); Silane coupling agent oligomer; Oligo-VTMS; (Vinyltrimethoxysilyl) oligomer; Low molecular weight vinyltrimethoxysilane polymer
EINECS	Contact for details

Quality Control

Our Oligo-Vinyltrimethoxysilane is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance reliability. Production adheres to relevant industry standards, and each lot is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, viscosity, and methoxy content. We are committed to meeting the specific purity and functional requirements of our global B2B clients.

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 contact with atmospheric moisture. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (as Vinyltrimethoxysilane oligomer)	≥ 95.0%
Viscosity (25°C)	10 - 50 mPa·s
Methoxy Content	Contact for details
Specific Gravity (25°C)	0.95 - 1.05
Water Content	≤ 0.5%

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