Description

1,3-Bis(3-Glycidoxypropyl)Tetramethyldisiloxane is a high-purity, bifunctional organosilicon compound featuring both epoxy and siloxane groups in its molecular structure. This unique hybrid chemistry makes it an exceptionally versatile crosslinking agent and reactive intermediate for creating advanced polymeric materials with enhanced properties. It is essential for formulators and manufacturers in sectors requiring materials with superior adhesion, flexibility, and thermal stability. Key industries that rely on this compound include advanced electronics, high-performance coatings, and specialty adhesives and sealants.

Application

• Epoxy Resin Modification: Acts as a flexibilizer and adhesion promoter in epoxy formulations for coatings, encapsulants, and composites.
• Silicone Hybrid Polymers: Serves as a key monomer or crosslinker in the synthesis of specialty silicone-epoxy copolymers.
• Electronic Encapsulation & Potting: Used in formulations for protecting sensitive electronic components due to its excellent dielectric properties and stress relief.
• Adhesives & Sealants: Enhances the bonding strength, moisture resistance, and durability of high-performance adhesive systems.
• Fiber Optic Coatings: Employed in coatings for optical fibers to provide mechanical protection and signal integrity.
• Surface Treatment Agent: Used to modify inorganic surfaces (e.g., glass, metals) to improve compatibility with organic polymers.
• Release Coatings: A component in formulations for creating controlled-release surfaces in industrial applications.

Basic Information

Product Name	1,3-Bis(3-Glycidoxypropyl)Tetramethyldisiloxane
CAS No.	126-80-7
Molecular Formula	C16H34O5Si2
Molecular Weight	362.61 g/mol
Synonyms	Bis(3-glycidoxypropyl)tetramethyldisiloxane; 1,3-Bis(glycidoxypropyl)tetramethyldisiloxane; 3-[1,3-Bis[3-(oxiran-2-ylmethoxy)propyl]-1,1,3,3-tetramethyldisiloxanyl]propan-1-ol (related); Glycidoxypropyl-terminated siloxane; Epoxy-functional disiloxane; SIB1096.0 (potential trade name); GPTMDS; Tetramethyl-1,3-bis(3-glycidoxypropyl)disiloxane
EINECS	204-811-5

Quality Control

Our 1,3-Bis(3-Glycidoxypropyl)Tetramethyldisiloxane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, epoxy content, and functional integrity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters to support your quality assurance protocols. Our commitment to consistent quality and supply reliability makes us a trusted partner for industrial and R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). This product is light-sensitive and easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain optimal purity and reactivity. Keep away from heat, sparks, open flames, and incompatible materials such as strong acids and bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Epoxy Value	Contact for details
Refractive Index (n20D)	1.440 - 1.445
Density (g/mL, 25°C)	0.98 - 1.02
Viscosity (cSt, 25°C)	Contact for details
Water Content (KF)	≤ 0.1%

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