Description

1,2-Bis(Trimethoxysilyl)Ethane is a bifunctional organosilicon compound, also known as a silane crosslinker. This product matters as a critical coupling agent and surface modifier, enabling strong adhesion between organic polymers and inorganic substrates. It is primarily needed by manufacturers in the silicone rubber, adhesive, sealant, and composite materials industries for enhancing material performance and durability.

Application

• As a crosslinking agent in moisture-curing silicone sealants and RTV (Room Temperature Vulcanizing) silicone rubbers.
• As a coupling agent in mineral-filled composites (e.g., fiberglass, silica-filled systems) to improve mechanical properties.
• As a surface treatment agent for glass, metals, and fillers to promote adhesion and dispersion.
• In the synthesis of specialty silicone resins and modified siloxane polymers.
• As an adhesion promoter in primer formulations for coatings and adhesives on difficult substrates.
• For the modification of silica surfaces in chromatography and other advanced material applications.

Basic Information

Product Name	1,2-Bis(Trimethoxysilyl)Ethane
CAS No.	18406-41-2
Molecular Formula	C8H22O6Si2
Molecular Weight	270.43 g/mol
Synonyms	Ethane-1,2-diylbis(trimethoxysilane); Bis(trimethoxysilyl)ethane; 1,2-Bis(trimethoxysilyl)ethane; BTME; Ethylene bridged silane; Dow Corning® Z-6940; Dynasylan® BTME; SIB1822.0
EINECS	242-255-8

Quality Control

Our 1,2-Bis(Trimethoxysilyl)Ethane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for industrial and advanced material applications. A Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment.

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.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.390 - 1.400
Density (20°C)	1.05 - 1.10 g/cm³
Moisture (Karl Fischer)	≤ 0.5%

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