Description

Dimethylsiloxane/ Methyl Phenyl Silsesquioxane/ Eg/ Tmp is a specialized silicone-based copolymer that combines the properties of dimethylsiloxane and methyl phenyl silsesquioxane. This compound is engineered to deliver enhanced thermal stability, optical clarity, and mechanical performance compared to standard polydimethylsiloxanes. It is a critical material for manufacturers in the electronics, advanced optics, and high-performance coatings industries seeking to improve product durability under extreme conditions.

Application

• As a high-temperature resistant encapsulant and potting material for electronic components and LED packaging.
• Key ingredient in formulating optical-grade silicone resins for lenses, light guides, and protective films.
• Used as a modifying agent in release coatings and pressure-sensitive adhesives to enhance performance.
• Base polymer for protective and dielectric coatings in aerospace and automotive applications.
• Intermediate in the synthesis of advanced silicone gels and elastomers with tailored refractive indices.
• Component in mold-making materials requiring excellent detail reproduction and heat resistance.

Basic Information

Product Name	Dimethylsiloxane/ Methyl Phenyl Silsesquioxane/ Eg/ Tmp
CAS No.	68607-72-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Methyl Phenyl Silsesquioxane-Dimethylsiloxane Copolymer; Phenylmethylsilsesquioxane-dimethylsiloxane Copolymer; EG Resin; TMP Resin; Silicone Copolymer 68607-72-7; Phenyl Modified Silicone Fluid; Methylphenylsiloxane-dimethylsiloxane Copolymer
EINECS	Contact for details

Quality Control

Our production of Dimethylsiloxane/ Methyl Phenyl Silsesquioxane/ Eg/ Tmp adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including viscosity, refractive index, phenyl content, and thermal stability. A comprehensive Certificate of Analysis (COA) documenting these specifications is provided with every shipment to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture which may affect product performance.

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 (n20D)	Specification available upon request
Phenyl Content	Specification available upon request
Volatile Matter	≤ 1.0%

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