Description

Siloxanes And Silicones, Me 3-(Oxiranylmethoxy)Propyl is a specialized organosilicon compound featuring both siloxane/silicone backbones and a reactive oxirane (epoxy) functional group. This unique molecular architecture makes it a valuable reactive intermediate and coupling agent for modifying polymer properties and enhancing material compatibility. It is primarily used by formulators and manufacturers in the adhesives, sealants, coatings, and advanced composites industries seeking to improve adhesion, flexibility, and chemical resistance.

Application

• Epoxy Resin Modification: Acts as a flexibilizer and adhesion promoter in epoxy-based formulations for coatings, adhesives, and composite matrices.
• Silicone Hybrid Polymers: Serves as a key monomer or crosslinker in the synthesis of specialty silicone-epoxy hybrid polymers with tailored properties.
• Surface Treatment & Primers: Used to functionalize inorganic surfaces (glass, metals, fillers) to improve bonding with organic polymer matrices.
• Release Coatings & Molding: Incorporated into silicone release coatings or mold-making materials to modify surface energy and release characteristics.
• Electronic Encapsulants & Potting: Enhances the thermal stability, moisture resistance, and mechanical strength of protective compounds for electronic components.
• Fiber Sizing & Composite Interphase: Applied as a coupling agent on glass or carbon fibers to optimize the fiber-matrix interface in high-performance composites.

Basic Information

Product Name	Siloxanes And Silicones, Me 3-(Oxiranylmethoxy)Propyl
CAS No.	117500-33-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3-Glycidoxypropylmethylsiloxane-dimethylsiloxane copolymer; Glycidoxypropyl Methyl Siloxane-Dimethyl Siloxane Copolymer; Epoxy-functional silicone fluid; Epoxy-modified silicone oil; (Oxiranylmethoxy)propylmethylsiloxane; Siloxanes and silicones, 3-(oxiranylmethoxy)propyl Me; Epoxypropyl silicone; CAS 117500-33-1
EINECS	Contact for details

Quality Control

Our production of Siloxanes And Silicones, Me 3-(Oxiranylmethoxy)Propyl adheres to stringent quality management protocols. Each batch is characterized to ensure consistency in epoxy equivalent weight, viscosity, and functional group content, which are critical for predictable performance in downstream reactions. Comprehensive Certificates of Analysis (COA) documenting purity and key specifications are provided to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area. Recommended storage temperature is 15-25°C. Keep away from heat, sparks, and open flame. Containers should be kept tightly sealed when not in use to minimize moisture absorption and exposure to air.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Refractive Index @ 25°C	Contact for details
Water Content	< 0.5%

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