Description

Methacryloxymethyltriethoxysilane is a bifunctional organosilane coupling agent that combines a hydrolysable ethoxysilyl group with a polymerizable methacrylate group. This unique structure makes it a critical component for enhancing adhesion and compatibility between inorganic materials and organic polymer matrices. It is essential for manufacturers in the coatings, adhesives, sealants, and advanced composites industries seeking to improve product durability and performance.

Application

• As a key adhesion promoter in acrylic-based paints, coatings, and primers for metals, glass, and mineral surfaces.
• As a surface modifier and coupling agent in filled polymer composites (e.g., fiberglass, mineral-filled plastics) to improve mechanical properties.
• In the formulation of moisture-curable silicone-modified acrylic sealants and adhesives.
• For the surface treatment of silica, glass fibers, and other inorganic fillers to enhance dispersion and bonding in resin systems.
• As a co-monomer or crosslinking agent in the synthesis of specialty silicone-acrylic hybrid polymers and resins.
• In dental composite materials to improve the bond between silica fillers and the resin matrix.

Basic Information

Product Name	Methacryloxymethyltriethoxysilane
CAS No.	5577-72-0
Molecular Formula	C11H24O5Si
Molecular Weight	264.40 g/mol
Synonyms	3-(Methacryloyloxy)propyltriethoxysilane (common misnomer, often used interchangeably); (3-Methacryloxypropyl)triethoxysilane; MEMO; MPTES; γ-Methacryloxypropyltriethoxysilane; Silane A-174; Dynasylan MEMO; KH-570; Methacryloxypropyltriethoxysilane
EINECS	226-961-5

Quality Control

Our Methacryloxymethyltriethoxysilane is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by GC, purity verification, and checks for key impurities, to ensure it meets precise specifications for industrial applications. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee consistency and reliability for your formulations.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent hydrolysis and polymerization upon contact with moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.428 - 1.432
Density (g/mL, 20°C)	1.040 - 1.050

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