Description

Acryloxymethyl Trimethoxysilane is a highly reactive organosilicon monomer featuring both acrylate and alkoxysilane functionalities. This dual functionality makes it an essential coupling agent and crosslinker, enabling strong adhesion between organic polymers and inorganic substrates. It is primarily used by manufacturers in the coatings, adhesives, sealants, and advanced composites industries to enhance durability, weather resistance, and mechanical properties.

Application

• Crosslinking Agent for Acrylic Resins: Imparts improved hardness, chemical resistance, and weatherability to acrylic-based coatings, paints, and adhesives.
• Surface Modification of Fillers & Pigments: Used as a coupling agent to treat silica, glass, and metal oxides, improving their dispersion and compatibility in polymer matrices.
• Adhesion Promoter: Enhances the bond strength of coatings, inks, and adhesives to difficult substrates like glass, metals, and treated plastics.
• Silicone Hybrid Materials: A key monomer for synthesizing silicone-acrylate copolymers used in high-performance sealants, elastomers, and pressure-sensitive adhesives.
• Fiber Sizing and Treatment: Applied to glass or carbon fibers to improve interfacial adhesion and stress transfer in reinforced composites.
• Synthesis of Functional Silanes: Serves as a versatile chemical intermediate for further organic modifications to create custom silane derivatives.

Basic Information

Product Name	Acryloxymethyl Trimethoxysilane
CAS No.	21134-38-3
Molecular Formula	C7H14O5Si
Molecular Weight	206.27 g/mol
Synonyms	Acryloyloxymethyltrimethoxysilane; (Acryloyloxymethyl)trimethoxysilane; 3-(Trimethoxysilyl)-2-propenyl acrylate; Acrylic acid, 2-(trimethoxysilyl)methyl ester; Acryloxymethyltrimethoxy silane; Silane, acryloxymethyltrimethoxy-; Acryloyloxymethyl trimethoxysilane; AMTMS
EINECS	244-235-8

Quality Control

Our Acryloxymethyl Trimethoxysilane is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications for industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and reliability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	1.07 - 1.10 g/cm³
Refractive Index (n20/D)	1.420 - 1.430

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