Description

3-[Tris(Acetoxy)Silyl]Propyl Methacrylate is a specialized organosilane coupling agent that combines a reactive methacrylate group with hydrolyzable acetoxysilane functionalities. This dual reactivity makes it a critical component for creating durable covalent bonds between organic polymers and inorganic substrates like glass, metals, and minerals. It is essential for formulators and manufacturers in the coatings, adhesives, and advanced composites industries seeking to enhance material performance, adhesion, and longevity in demanding environments.

Application

• Adhesion Promoter: Key ingredient in primers and adhesives for glass, metals, and ceramics, significantly improving bond strength and durability.
• Crosslinking Agent: Used in moisture-curable silicone resins and sealants to form stable, three-dimensional networks.
• Surface Modification: Imparts reactive methacrylate groups onto inorganic fillers (e.g., silica, glass fibers) for better compatibility and bonding in composite materials.
• Dental & Medical Materials: Employed in the formulation of dental composites and bone cements to enhance filler-matrix adhesion and mechanical properties.
• Optical & Electronic Coatings: Used in hard, abrasion-resistant coatings for optical lenses and as a component in encapsulants for electronic devices.
• Hybrid Organic-Inorganic Polymers (ORMOSILs): Serves as a precursor for synthesizing advanced materials with tailored optical, mechanical, and surface properties.

Basic Information

Product Name	3-[Tris(Acetoxy)Silyl]Propyl Methacrylate
CAS No.	51772-85-1
Molecular Formula	C15H24O8Si
Molecular Weight	360.44 g/mol
Synonyms	3-(Trimethoxysilyl)propyl methacrylate triacetate; (3-Methacryloxypropyl)tris(acetoxy)silane; Tris(acetoxy)(3-methacryloxypropyl)silane; Methacryloxypropyltris(acetoxy)silane; Silane AY 43-208; Silane coupling agent KH-570 (acetoxy version); 3-Methacryloxypropyltriacetoxysilane; MPTAS
EINECS	257-390-5

Quality Control

Our production of 3-[Tris(Acetoxy)Silyl]Propyl Methacrylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, assay, purity, and impurity profiles is provided with every shipment, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to maximize shelf life and stability. This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and polymerization upon exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.10 - 1.15 g/cm³
Refractive Index (n20D)	1.430 - 1.440
Acetoxy Content (Titration)	Contact for details

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