Description

(3-Acryloxypropyl)Methyldiethoxysilane, 95% is a high-purity organosilicon monomer featuring both acrylate and alkoxysilane functional groups. This dual functionality makes it a critical cross-linking agent and adhesion promoter in advanced material synthesis. It is essential for manufacturers in the coatings, adhesives, and specialty polymer industries seeking to enhance product durability, weather resistance, and substrate bonding.

Application

• UV-Curable Coatings & Inks: Acts as a reactive diluent and cross-linker to improve hardness, scratch resistance, and adhesion to glass, metal, and plastic substrates.
• Silicone Hybrid Polymers: Serves as a key monomer for synthesizing acrylate-modified silicones, imparting flexibility, weatherability, and low surface energy.
• Adhesives & Sealants: Enhances the bonding strength and moisture resistance of acrylic and silicone-based formulations.
• Fiber Optic & Electronic Coatings: Used in protective coatings for optical fibers and electronic components due to its excellent optical clarity and adhesion.
• Surface Treatment of Fillers: Functions as a coupling agent to modify the surface of minerals (e.g., silica, talc) for improved dispersion and compatibility in polymer composites.
• Dental & Medical Materials: Employed in the formulation of light-curable restorative materials and biocompatible coatings.

Basic Information

Product Name	(3-Acryloxypropyl)Methyldiethoxysilane, 95%
CAS No.	146666-71-9
Molecular Formula	C11H22O4Si
Molecular Weight	246.38 g/mol
Synonyms	3-(Methyldiethoxysilyl)propyl acrylate; Acrylovoxypropylmethyldiethoxysilane; Methyldiethoxysilylpropyl acrylate; γ-Acryloxypropylmethyldiethoxysilane; MDESPA; Silane AY 43-208; Dynasylan® 3411; SIA 0341.1; (3-Acryloxypropyl)methyldiethoxysilane
EINECS	Contact for details

Quality Control

Our (3-Acryloxypropyl)Methyldiethoxysilane, 95% is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FT-IR spectroscopy, to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C. This product 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, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Refractive Index (n20/D)	1.420 - 1.430
Density (20°C)	0.97 - 1.00 g/mL
Water Content (KF)	≤ 0.1%

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