Description

Siloxanes And Silicones, Di-Me, [[[3-(Oxiranylmethoxy)Propyl]Silylidyne]Tris(Oxy)] Tris-, Methoxy-Terminated is a specialized, multi-functional organosilicon compound featuring a reactive epoxy group and methoxy-terminated siloxane chains. This unique molecular architecture provides exceptional versatility as a reactive intermediate, coupling agent, and surface modifier in advanced material formulations. It is critically needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in electronics and composite materials, where it enhances adhesion, cross-linking density, and compatibility between organic and inorganic phases.

Application

• As a reactive diluent and cross-linking agent in epoxy-based coatings, adhesives, and encapsulants for electronics.
• As a key coupling agent to improve the interfacial adhesion between mineral fillers (e.g., silica) and polymer matrices in composite materials.
• In the formulation of silicone-modified epoxy resins to impart flexibility, thermal stability, and moisture resistance.
• As a surface treatment agent for nanoparticles and fibers to enhance dispersion and compatibility in various host systems.
• For the synthesis of specialty silicone polyethers and other hybrid polymers.
• In the production of release coatings and pressure-sensitive adhesives with tailored properties.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, [[[3-(Oxiranylmethoxy)Propyl]Silylidyne]Tris(Oxy)] Tris-, Methoxy-Terminated
CAS No.	70851-30-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3-Glycidoxypropyltris(methoxy)silane; Tris(methoxy)[3-(oxiranylmethoxy)propyl]silane; (3-Glycidyloxypropyl)trimethoxysilane; Glymo; GPTMS; Silane, tris(methoxy)[3-(oxiranylmethoxy)propyl]-; γ-Glycidoxypropyltrimethoxysilane; A-187 Silane
EINECS	Contact for details

Quality Control

Our production of this epoxy-functional silane adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against stringent internal specifications, with key parameters including epoxy content, methoxy group content, purity, and refractive index. A comprehensive Certificate of Analysis (COA) detailing these results is provided with every shipment to support your quality assurance and regulatory needs.

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). Keep away from heat, sparks, and open flame. The container must be kept tightly sealed to prevent moisture absorption, which can lead to hydrolysis and polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Epoxy Value	Contact for details
Refractive Index (n20D)	Contact for details
Density (g/mL, 25°C)	Contact for details

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