Description

Siloxanes And Silicones, Di-Me, Me 3-(Oxiranylmethoxy)Propyl is a specialized organofunctional silicone fluid featuring reactive epoxy groups. This compound matters for its unique ability to act as a reactive intermediate, enhancing adhesion, flexibility, and compatibility in polymer matrices. It is primarily needed by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced composite and electronic materials manufacturing.

Application

• Epoxy Resin Modification: Used as a flexibilizer and toughening agent to improve impact resistance and reduce internal stress in cured epoxy systems.
• Adhesive & Sealant Formulations: Enhances adhesion to low-surface-energy substrates (e.g., plastics, metals) and provides lasting flexibility and moisture resistance.
• Hybrid Polymer Synthesis: Serves as a key monomer or crosslinker for creating silicone-epoxy hybrid polymers with tailored thermal and mechanical properties.
• Surface Treatment & Primers: Applied as a coupling agent or primer to promote bonding between organic coatings and inorganic surfaces like glass or metal.
• Electronic Encapsulation & Potting: Incorporated into materials to provide stress relief, thermal stability, and protection for sensitive electronic components.
• Fiber-Reinforced Composites: Improves the interfacial bonding between reinforcing fibers (e.g., glass, carbon) and the polymer matrix.
• Release Coatings & Molding: Utilized in formulations where controlled release or easy demolding is required, benefiting from its silicone backbone.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, Me 3-(Oxiranylmethoxy)Propyl
CAS No.	68440-71-1
Molecular Formula	CnH2n+2O3Six (Polymeric)
Molecular Weight	Varies by chain length (n, x)
Synonyms	3-Glycidoxypropyl-terminated polydimethylsiloxane; Epoxypropoxypropyl-terminated PDMS; Epoxy-functional silicone oil; (Oxiranylmethoxy)propyl methyl siloxane homopolymer; Glycidoxypropyl methyl siloxane; Siloxanes and silicones, di-Me, Me 3-(oxiranylmethoxy)propyl-, homopolymer; Epoxy-modified silicone fluid; CAS 68440-71-1
EINECS	Contact for details

Quality Control

Our Siloxanes And Silicones, Di-Me, Me 3-(Oxiranylmethoxy)Propyl undergoes rigorous quality testing to ensure batch-to-batch consistency and performance. Key parameters monitored include epoxy equivalent weight (EEW), viscosity, and purity. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and other materials that can catalyze the opening of the epoxy ring. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	~0.98 - 1.02
Refractive Index @ 25°C	~1.405 - 1.415
Water Content	< 0.1% (Karl Fischer)
Identification (IR)	Conforms to structure

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