Description

Siloxanes And Silicones, Di-Me, Polymers With Me Silsesquioxanes, Reaction Products With Boron Oxide (B2O3) is a specialized organosilicon polymer modified with boron, creating a hybrid material with unique thermal and rheological properties. This compound matters for its ability to enhance the thermal stability, flame retardancy, and mechanical performance of silicone-based formulations. It is primarily needed by manufacturers in the electronics, aerospace, and high-performance coatings industries seeking advanced materials for demanding applications.

Application

• High-Temperature Resistant Coatings: Used as a key modifier in protective coatings for automotive, aerospace, and industrial equipment to improve heat stability and reduce flammability.
• Electronic Encapsulants & Potting Compounds: Enhances the thermal management and flame retardant properties of silicones used to protect sensitive electronic components.
• Specialty Adhesives & Sealants: Imparts improved thermal endurance and adhesion under harsh environmental conditions in construction and automotive assembly.
• Polymer Additive for Composites: Acts as a performance additive in silicone rubber and resin composites to boost thermal-oxidative stability.
• Ceramic Precursor Materials: Serves as a pre-ceramic polymer in the synthesis of silicon borocarbonitride (SiBCN) ceramics for advanced material science.
• Release Coatings & Molding Aids: Utilized in high-temperature molding and release applications where standard silicones may degrade.

Basic Information

Item	Detail
Product Name	Siloxanes And Silicones, Di-Me, Polymers With Me Silsesquioxanes, Reaction Products With Boron Oxide (B2O3)
CAS No.	68440-85-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Boron-Modified Methyl Siloxane-Silsesquioxane Copolymer; Polymethylsilsesquioxane Borate; Boron-Containing Polysiloxane; Borosiloxane Polymer; Methyl Siloxane/Boron Oxide Adduct; Silicone Boron Resin; Boron Doped Methylsilsesquioxane; CAS 68440-85-7
EINECS	Contact for details

Quality Control

Our Boron-Modified Siloxane Polymers are produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance, including verification of boron content, viscosity, and thermal stability. Certificates of Analysis (COA) documenting key parameters 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 oxidizing agents. This material may be moisture-sensitive; ensure containers are sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Identification (IR)	Conforms to structure
Boron Content (B2O3 basis)	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity	Contact for details
Refractive Index	Contact for details
Thermal Decomposition Onset	> 300°C

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