Description

Methyltriethoxysilane is a versatile organosilicon compound widely used as a key intermediate and coupling agent. Its primary value lies in its ability to modify surfaces and act as a cross-linking agent, enhancing adhesion, water repellency, and durability in various materials. This product is essential for manufacturers in the silicone polymers, coatings, adhesives, and sealants industries seeking to improve product performance.

Application

• Silicone Resin & Polymer Synthesis: A fundamental monomer for producing methylsilicone resins, rubbers, and other silicone-based polymers.
• Surface Treatment & Coupling Agent: Used to treat glass fibers, minerals, and fillers to improve their compatibility and bonding with organic polymer matrices in composites.
• Hydrophobic Coatings: Imparts water-repellent properties to surfaces in construction materials, stone, and textiles.
• Adhesives and Sealants: Acts as an adhesion promoter and cross-linker, enhancing weather resistance and durability.
• Precursor for Silanes: Serves as a starting material for the synthesis of other functional silanes and silicone intermediates.
• Nanomaterial Modification: Used to functionalize silica nanoparticles and other nanomaterials for specialized applications.

Basic Information

Product Name	Methyltriethoxysilane
CAS No.	2031-67-6
Molecular Formula	C7H18O3Si
Molecular Weight	178.30 g/mol
Synonyms	Methyltriethoxysilane; Triethoxymethylsilane; Methylsilanetriol triethyl ether; Silane, triethoxymethyl-; Dynasylan MTES; MTES; A-163; KBE-13
EINECS	217-983-4

Quality Control

Our Methyltriethoxysilane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including GC analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and key physical properties are available upon request to support your quality assurance protocols.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 98.0%
Refractive Index (n20D)	1.383 - 1.387
Density (20°C)	0.890 - 0.910 g/cm³
Water Content (Karl Fischer)	≤ 0.1%

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