Description

Siloxanes And Silicones, Me Ph, Polymers With Me Ph Silsesquioxanes is a specialized organosilicon copolymer, CAS NO 68037-83-2, engineered to deliver a unique balance of thermal stability, chemical resistance, and mechanical properties. This advanced material is crucial for formulators seeking to enhance the performance and durability of high-end coatings, adhesives, and composites. It is particularly valuable for industries such as aerospace, electronics, and automotive manufacturing, where materials must withstand extreme environments.

Application

• High-Performance Coatings: Used as a resin modifier or additive to improve heat resistance, weatherability, and gloss retention in protective and decorative coatings.
• Advanced Adhesives & Sealants: Imparts flexibility, adhesion, and thermal stability to silicone-based and hybrid adhesive formulations.
• Electronic Encapsulants: Serves as a key component in potting compounds and encapsulants to protect sensitive electronic components from moisture, thermal shock, and mechanical stress.
• Composite Materials: Acts as a matrix resin or coupling agent in fiber-reinforced composites for aerospace and automotive applications, enhancing interlaminar strength and thermal performance.
• Release Agents: Formulated into non-stick and mold release coatings for industrial manufacturing processes.
• Specialty Elastomers: Used in the synthesis of high-consistency rubbers (HCR) and liquid silicone rubbers (LSR) requiring enhanced properties.

Basic Information

Product Name	Siloxanes And Silicones, Me Ph, Polymers With Me Ph Silsesquioxanes
CAS No.	68037-83-2
Molecular Formula	Contact for details
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Methyl Phenyl Siloxane Copolymer; Methyl Phenyl Polysiloxane; Phenylmethylsiloxane-dimethylsiloxane Copolymer; Me Ph Silicone Resin; Methyl Phenyl Silsesquioxane-Siloxane Polymer; Phenyl Modified Silicone Fluid; Aromatic Silicone Polymer; Dow Corning® 550 Fluid (related product class)
EINECS	Contact for details

Quality Control

Our production of Siloxanes And Silicones, Me Ph, Polymers With Me Ph Silsesquioxanes adheres to a stringent quality management system. Each batch is characterized and tested against critical parameters including viscosity, refractive index, phenyl content, and volatile matter to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these specifications are available upon request.

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 strong alkalis and incompatible organic solvents as indicated in the chemical properties. For long-term storage, consider under an inert atmosphere to prevent viscosity drift.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity @ 25°C	Specification available upon request
Refractive Index @ 25°C	Specification available upon request
Phenyl Content	Specification available upon request
Volatile Matter	< 1.0% (typical)
Specific Gravity @ 25°C	Specification available upon request

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