Description

3-(Acryloyloxy)Propyltrimethoxysilane is a bifunctional organosilane coupling agent featuring both a polymerizable acrylate group and a hydrolyzable trimethoxysilyl group. This unique structure makes it a critical component for enhancing the adhesion between inorganic materials and organic polymer matrices. It is primarily utilized in the formulation of advanced composites, coatings, and adhesives where durable bonding and improved mechanical properties are essential. Key industries that rely on this silane include plastics, rubber, paints, and advanced material manufacturing.

Application

• As a coupling agent in glass fiber-reinforced plastics (GRP) and mineral-filled composites to improve mechanical strength and moisture resistance.
• As a surface primer or additive in coatings, paints, and inks to enhance adhesion to glass, metal, and mineral substrates.
• As a crosslinking agent or adhesion promoter in silicone rubber and sealant formulations.
• For the surface treatment of fillers (e.g., silica, talc) and pigments to improve dispersion and compatibility in polymer systems.
• In the manufacture of moisture-curable resins and crosslinked polymer networks.
• As a key intermediate in the synthesis of specialized silane-modified polymers and hybrid materials.

Basic Information

Product Name	3-(Acryloyloxy)Propyltrimethoxysilane
CAS No.	4369-14-6
Molecular Formula	C9H18O5Si
Molecular Weight	234.32 g/mol
Synonyms	Acryloxypropyltrimethoxysilane; 3-Acryloxypropyltrimethoxysilane; Trimethoxy(3-(acryloyloxy)propyl)silane; Acrylovloxypropyltrimethoxysilane; Silane AY 43-031; Silquest A-174; Z-6075; Dow Corning Z-6075
EINECS	224-466-9

Quality Control

Our 3-(Acryloyloxy)Propyltrimethoxysilane is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture. Keep away from heat and sources of ignition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.428 - 1.432
Density (20°C)	1.045 - 1.065 g/mL

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