Description

3-(Methacryloyloxy)Propyltris(Trimethylsiloxy)Silane CAS NO 17096-07-0 is a highly functionalized organosilicon monomer featuring both a polymerizable methacrylate group and hydrolyzable siloxy groups. This dual functionality makes it a critical crosslinking agent and surface modifier, enabling the creation of durable, high-performance materials. It is essential for manufacturers in the silicone resin, advanced adhesive, and specialty coating industries seeking to enhance product adhesion, weather resistance, and mechanical properties.

Application

• Silicone Resin & Rubber Modification: Acts as a crosslinker and reinforcing agent to improve tensile strength, thermal stability, and elasticity.
• Adhesives & Sealants: Used as an adhesion promoter, particularly for silicone-based formulations bonding to difficult substrates like metals, glass, and plastics.
• Radiation-Curable Coatings: Serves as a key monomer in UV/EB-curable systems for hard, scratch-resistant, and glossy finishes.
• Surface Treatment & Primers: Imparts hydrophobic and oleophobic properties to surfaces, used in anti-fouling and easy-clean coatings.
• Dental & Medical Materials: Incorporated into biocompatible silicone composites and impression materials to control viscosity and curing behavior.
• Optical & Electronic Encapsulants: Enhances the refractive index and environmental protection of silicones used for LED packaging and component potting.

Basic Information

Item	Details
Product Name	3-(Methacryloyloxy)Propyltris(Trimethylsiloxy)Silane
CAS No.	17096-07-0
Molecular Formula	C16H38O5Si4
Molecular Weight	422.81 g/mol
Synonyms	Methacryloxypropyltris(trimethylsiloxy)silane; Tris(trimethylsiloxy)(3-methacryloxypropyl)silane; 3-Methacryloxypropyltris(trimethylsiloxy)silane; MEMO; Silane AY 43-031; Silquest AY 43-031; Dynasylan MEMO; KBM 503; SCA 03M; Methacryloxypropyltris(trimethylsiloxy)silane
EINECS	241-158-9

Quality Control

Our production of 3-(Methacryloyloxy)Propyltris(Trimethylsiloxy)Silane adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed via GC, HPLC, and NMR to confirm identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, supporting compliance in regulated supply chains.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C. This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and polymerization. Keep away from heat and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.408 - 1.412
Density (20°C)	0.89 - 0.93 g/cm³
Water Content (KF)	≤ 0.1%

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