Description

Triethoxysilane is a versatile organosilicon compound that serves as a key intermediate in the synthesis of advanced silicone polymers and surface-modifying agents. Its reactive ethoxysilane group makes it a critical building block for creating materials with enhanced adhesion, water repellency, and chemical resistance. This product is essential for manufacturers in the silicone resins, adhesives, and specialty coatings industries seeking to improve product performance and durability.

Application

• Silicone Resin Precursor: A fundamental monomer for the production of heat-resistant and weatherable silicone resins used in paints and protective coatings.
• Crosslinking Agent: Employed in silicone rubber and sealant formulations to enhance mechanical properties and cure characteristics.
• Surface Modification: Used to functionalize inorganic surfaces like glass, silica, and metals to improve compatibility with organic matrices in composite materials.
• Adhesion Promoter: Acts as a coupling agent in adhesive and primer systems to boost bond strength between dissimilar substrates.
• Hydrophobic Coatings: A key ingredient in formulations for creating water-repellent surfaces on textiles, construction materials, and electronics.
• Chemical Intermediate: Serves as a starting material for the synthesis of more complex silane derivatives and functionalized siloxanes.

Basic Information

Product Name	Triethoxysilane
CAS No.	998-30-1
Molecular Formula	C6H16O3Si
Molecular Weight	164.28 g/mol
Synonyms	Silane, triethoxy-; Triethoxyhydrosilane; Triethoxysilicon hydride; Hydridotriethoxysilane; TES; HSi(OCH2CH3)3; Triethyloxysilane
EINECS	213-650-7

Quality Control

Our Triethoxysilane is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling, to meet precise customer specifications. Certificates of Analysis (COA) documenting all critical quality attributes are 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, well-ventilated area away from heat sources and incompatible materials. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation. Recommended storage temperature is 2-8°C for extended shelf life.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (20°C)	0.88 - 0.92 g/mL
Refractive Index (n20D)	1.375 - 1.385

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