Description

[8-(Glycidyloxy)-n-Octyl]Trimethoxysilane is a specialized organofunctional silane coupling agent featuring a long-chain alkyl spacer terminated with a reactive glycidyl ether group. This unique bifunctional structure is engineered to create durable covalent bonds between inorganic substrates and organic polymer matrices, significantly enhancing composite material performance. It is essential for formulators and material scientists in the advanced composites, coatings, adhesives, and sealants industries seeking to improve interfacial adhesion, mechanical strength, and environmental resistance.

Application

• Surface Modification of Fillers and Reinforcements: Priming glass fibers, silica, and other mineral fillers to improve dispersion and bonding within epoxy, polyurethane, and other thermoset resin systems.
• Adhesion Promotion in Coatings and Inks: Enhancing the adhesion of epoxy-based primers and functional coatings to challenging metallic (aluminum, steel) and mineral surfaces.
• Crosslinking Agent for Silicone Polymers: Acting as a crosslinker or chain extender in silicone rubber and resin formulations to modify network structure and properties.
• Composite Material Fabrication: Improving the interphase in fiber-reinforced plastics (FRP) and nanocomposites, leading to better tensile strength, flexural modulus, and moisture resistance.
• Adhesive and Sealant Formulations: Increasing the bond strength and durability of high-performance structural adhesives and elastomeric sealants, especially in automotive and aerospace applications.
• Hybrid Organic-Inorganic Material Synthesis: Serving as a key precursor in sol-gel processes for creating advanced hybrid coatings with tailored surface properties.

Basic Information

Product Name	[8-(Glycidyloxy)-n-Octyl]Trimethoxysilane
CAS No.	1239602-38-0
Molecular Formula	C₁₄H₃₀O₅Si
Molecular Weight	306.48 g/mol
Synonyms	8-Glycidyloxyoctyltrimethoxysilane; (3-Glycidyloxypropyl)trimethoxysilane C8-homolog; Glycidoxypropyltrimethoxysilane, octyl-; (8-Glycidyloctyl)trimethoxysilane; γ-Glycidyloxypropyltrimethoxysilane (extended chain); Silane coupling agent KH-560 analog (long chain); OCS-8G; Epoxy-functional long-chain alkoxysilane
EINECS	Contact for details

Quality Control

Our production of [8-(Glycidyloxy)-n-Octyl]Trimethoxysilane adheres to stringent quality management protocols. Each batch is analyzed to ensure consistent purity, reactivity, and performance. Key parameters including assay, epoxy content, and methoxy group content are verified. A Certificate of Analysis (COA) detailing the specific results 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain optimal reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Epoxy Value	Contact for details
Refractive Index (n20/D)	1.440 - 1.445
Density (25°C)	0.98 - 1.02 g/cm³

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