Description

Tetrakis(Ethoxyethoxy)Silane is a versatile organosilicon compound characterized by its four ethoxyethoxy functional groups attached to a central silicon atom. This structure makes it a valuable reactive intermediate and cross-linking agent, offering excellent compatibility with organic polymers and inorganic substrates. It is primarily utilized in the production of specialty silicones, advanced coatings, and as a surface modifier in high-performance materials. Industries such as adhesives & sealants, electronics, and specialty polymers rely on its unique properties to enhance product performance and durability.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent and reactive monomer in the synthesis of specialty silicone resins and hybrid organic-inorganic polymers.
• Surface Treatment & Coupling Agent: Used to modify the surface of glass, silica, and metal oxides to improve adhesion, dispersion, and hydrophobicity in composite materials.
• Adhesives and Sealants: Serves as an adhesion promoter and moisture-cure component in high-performance silicone and polyurethane formulations.
• Electronic Encapsulants & Potting Compounds: Imparts flexibility, moisture resistance, and thermal stability to protective materials for electronic components.
• Specialty Coatings: Employed in the formulation of release coatings, protective films, and anti-corrosive layers.
• Fiber Optic Coatings: Used as a key ingredient in coatings that protect optical fibers from environmental stress and signal loss.

Basic Information

Product Name	Tetrakis(Ethoxyethoxy)Silane
CAS No.	18407-94-8
Molecular Formula	C20H44O8Si
Molecular Weight	440.65 g/mol
Synonyms	Silane, tetrakis(2-ethoxyethoxy)-; Tetra(2-ethoxyethoxy)silane; 2,2',2'',2'''-(Silane-1,1,1,1-tetrayl)tetrakis(oxy)tetraethanol diethyl ether; Tetraethyleneglycol monoethyl ether orthosilicate; Ethoxyethoxy Silane; TEES; Tetrakis(2-ethoxyethoxy)silane; Silane A-172 (related trade name variant)
EINECS	242-273-9

Quality Control

Our Tetrakis(Ethoxyethoxy)Silane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by GC or titration, identity confirmation (IR), and control of key impurities. A Certificate of Analysis (COA) detailing all test results 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, and 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 maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Density (20°C)	1.00 - 1.05 g/cm³
Refractive Index (n20D)	1.430 - 1.440
Water Content (KF)	≤ 0.5%

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