Description

Triethoxy-Methoxymethyl-Silane is a versatile organosilicon compound, specifically a mixed alkoxy-functional silane. This chemical is a crucial intermediate and coupling agent valued for its ability to modify surfaces and polymers, enhancing adhesion, compatibility, and performance. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of advanced composites and specialty silicones.

Application

• Surface Modification Agent: Used to treat inorganic fillers (e.g., silica, glass) to improve their dispersion and bonding within polymer matrices like epoxies and polyurethanes.
• Adhesion Promoter: Enhances the bond strength between organic coatings or adhesives and inorganic substrates such as metals, glass, and minerals.
• Crosslinking Agent/Co-monomer: Incorporated into silicone resin formulations to influence cure mechanisms and final material properties like flexibility and chemical resistance.
• Moisture-Cure Systems: Acts as a crosslinker in moisture-curing sealants and RTV (Room Temperature Vulcanizing) silicone formulations.
• Composite Manufacturing: Improves the interfacial adhesion between fiber reinforcements (e.g., glass fiber) and resin systems in composite materials.
• Hydrophobic Coatings: Serves as a precursor for creating water-repellent surface treatments on various materials.

Basic Information

Product Name	Triethoxy-Methoxymethyl-Silane
CAS No.	18379-49-2
Molecular Formula	C8H20O4Si
Molecular Weight	208.33 g/mol
Synonyms	Methoxymethyltriethoxysilane; (Methoxymethyl)triethoxysilane; Triethoxy(methoxymethyl)silane; Silane, methoxymethyltriethoxy-; Methoxymethyl triethoxysilane; Dynasylan® MTES; A 1634 (Momentive); KBE-04 (Shin-Etsu)
EINECS	242-245-9

Quality Control

Our Triethoxy-Methoxymethyl-Silane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) for purity and identity verification, to ensure it meets precise specifications for industrial applications. A Certificate of Analysis (COA) detailing all relevant 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). Due to its hygroscopic and highly volatile nature, keep the container tightly sealed when not in use and away from moisture and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20D)	1.390 - 1.400
Density (20°C)	0.92 - 0.96 g/mL

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