Description

1,2-Bis(Triethoxysilyl)Ethane is a high-purity organosilane crosslinker and adhesion promoter, essential for creating durable covalent bonds between inorganic substrates and organic polymers. Its bifunctional ethoxysilane structure provides superior hydrolytic stability and reactivity, making it a critical component for enhancing material performance. This compound is primarily needed by manufacturers in the advanced composites, specialty coatings, and electronics industries seeking to improve interfacial adhesion and long-term durability.

Application

• Crosslinking Agent for Silicone Polymers: Used to enhance the thermal and mechanical properties of high-performance silicone elastomers and resins.
• Surface Primer & Adhesion Promoter: Improves bond strength between glass, metals, or minerals and organic coatings, adhesives, or sealants.
• Filler Treatment in Composites: Functionalizes silica, glass fibers, and other mineral fillers to improve dispersion and interfacial adhesion within polymer matrices.
• Precursor for Hybrid Organic-Inorganic Materials (ORMOSIL): A key building block in sol-gel processes for creating advanced coatings, membranes, and optical materials.
• Waterproofing and Corrosion Protection: Formulated into surface treatments for concrete, stone, and metals to provide hydrophobic and protective layers.
• Electronic Encapsulants and Underfills: Enhances the reliability and moisture resistance of microelectronic packages.

Basic Information

Product Name	1,2-Bis(Triethoxysilyl)Ethane
CAS No.	16068-37-4
Molecular Formula	C14H34O6Si2
Molecular Weight	354.60 g/mol
Synonyms	Bis(triethoxysilyl)ethane; Ethane-1,2-diylbis(triethoxysilane); 1,2-Ethanediylbis(triethoxysilane); Diethoxysilylethane; SIB1830.0 (Gelest); Dynasylan® BETE (Evonik); A 1862 (Momentive); TESPD (common abbreviation); BTESE
EINECS	240-196-3

Quality Control

Our 1,2-Bis(Triethoxysilyl)Ethane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to guarantee compliance with your technical specifications.

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); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.395 - 1.405
Density (g/mL, 25°C)	0.990 - 1.010
Water Content (KF)	≤ 0.1%

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