Description

Siloxanes And Silicones, Di-Me, Polymers With Hexyl Me Silsesquioxanes, Methoxy-Terminated is a specialized organosilicon copolymer that combines the flexibility of polydimethylsiloxane (PDMS) with the structural reinforcement of hexyl silsesquioxane cages. This unique methoxy-terminated architecture provides excellent compatibility with a wide range of organic matrices and offers superior surface modification and release properties. It is a critical performance additive for formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material science applications.

Application

• High-Performance Release Coatings: Acts as a key component in solvent-based and solventless release liners for pressure-sensitive adhesives (PSAs), labels, and tapes.
• Surface Modification Agent: Imparts hydrophobic, oleophobic, and anti-stick characteristics to surfaces in industrial and textile treatments.
• Additive for Specialty Polymers: Enhances slip, mar resistance, and flow control in industrial and protective coatings, inks, and composites.
• Mold Release and Demolding Agent: Provides excellent multiple-release performance in polyurethane, epoxy, and rubber molding processes.
• Intermediate for Further Synthesis: The reactive methoxy termini serve as anchors for grafting other functional groups or for crosslinking into hybrid organic-inorganic networks.
• Lubricant and Defoamer Component: Used in formulating high-temperature stable lubricants and efficient defoamers for challenging industrial processes.

Basic Information

Item	Details
Product Name	Siloxanes And Silicones, Di-Me, Polymers With Hexyl Me Silsesquioxanes, Methoxy-Terminated
CAS No.	157709-77-8
Molecular Formula	Contact for details
Molecular Weight	Varies by grade/polymer chain length
Synonyms	Hexyl Silsesquioxane-Modified Methoxy-Terminated PDMS; Methoxy-Terminated Hexyl-POSS Polydimethylsiloxane Copolymer; Poly(dimethylsiloxane-co-hexylsilsesquioxane), methoxy end-capped; Hexyl T-POSS Silicone Fluid; Organomodified Siloxane Polymer with Hexyl POSS; Reactive Silicone Polymeric Additive; CAS 157709-77-8
EINECS	Contact for details

Quality Control

Every batch of our Siloxanes And Silicones, Di-Me, Polymers With Hexyl Me Silsesquioxanes, Methoxy-Terminated is manufactured under a strict quality management system. We provide comprehensive Certificates of Analysis (COA) that detail key parameters such as viscosity, methoxy content, non-volatile matter, and specific gravity to ensure batch-to-batch consistency and performance reliability for your formulations.

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/59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Specified grade range (e.g., 500-5000 cSt)
Non-Volatile Matter	> 95%
Methoxy Content	As per grade (by Titration)
Specific Gravity (25°C)	0.95 - 1.05
Refractive Index (25°C)	1.400 - 1.420

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