Description

γ-Acryloyloxypropyltriethoxysilane is a bifunctional organosilane coupling agent featuring both a hydrolyzable ethoxysilyl group and a polymerizable acryloyloxy group. This unique structure makes it a critical component for creating durable covalent bonds between inorganic substrates and organic polymer matrices. It is essential for manufacturers in the composites, adhesives, and coatings industries seeking to enhance material performance, adhesion, and longevity. The compound is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Fiber-Reinforced Composites: As a coupling agent for glass, carbon, or aramid fibers to improve interfacial adhesion and mechanical properties in thermoset and thermoplastic composites.
• Adhesives and Sealants: To promote adhesion to glass, metals, and mineral surfaces, enhancing bond strength and environmental durability.
• Coatings and Inks: As an adhesion promoter in UV-curable, radiation-curable, and solvent-based coating systems for improved scratch resistance and substrate wetting.
• Mineral-Filled Plastics: To surface-treat fillers like silica, talc, or calcium carbonate, improving dispersion and compatibility within polymer resins.
• Rubber Compounding: As a crosslinking agent and adhesion promoter in silicone rubber and other elastomer formulations.
• Dental and Medical Materials: Used in formulations for restorative composites and bone cements to bond organic resins to inorganic fillers.

Basic Information

Product Name	γ-Acryloyloxypropyltriethoxysilane
CAS No.	20208-39-3
Molecular Formula	C14H28O5Si
Molecular Weight	304.46 g/mol
Synonyms	3-(Triethoxysilyl)propyl acrylate; Acrylovloxypropyltriethoxysilane; Acrylovloxytrimethoxysilane (common misnomer); ACPTES; 3-Acryloxypropyltriethoxysilane; Silane A 174; γ-Acryloxypropyltriethoxysilane; 3-(Triethoxysilyl)-1-propanol acrylate
EINECS	243-680-1

Quality Control

Our γ-Acryloyloxypropyltriethoxysilane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay by GC or titration and verification of key physical properties, to ensure it meets precise specifications for industrial applications. Certificates of Analysis (COA) documenting purity, identity, and other critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent hydrolysis and polymerization upon exposure to atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.428 - 1.432
Density (20°C)	1.00 - 1.05 g/cm³
Color (APHA)	≤ 50

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