Description

Siloxanes And Silicones, Di-Me, Hydroxy- And Methoxy-Terminated is a versatile class of functionalized silicone polymers. These compounds are critical as reactive intermediates and modifiers, offering a unique combination of silicone backbone flexibility with terminal hydroxyl and methoxy reactivity. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material synthesis, where it serves as a key building block for creating tailored silicone-based materials with specific properties.

Application

• Silicone Resin & Polymer Synthesis: Acts as a key monomer or chain extender in the production of specialty silicone resins, copolymers, and high-performance elastomers.
• Surface Modification & Coupling Agent: Used to treat inorganic fillers (e.g., silica, minerals) to improve dispersion and compatibility in polymer matrices like plastics and rubbers.
• Adhesive & Sealant Formulations: Functions as a reactive plasticizer or cross-linking component in moisture-curing silicone and hybrid polymer sealants and adhesives.
• Coating Additives: Imparts slip, mar-resistance, and flow control in industrial, automotive, and architectural coatings.
• Release Agent Precursor: Serves as a base material for manufacturing silicone-based release coatings for labels, tapes, and food packaging.
• Personal Care & Cosmetic Ingredients: Used in the synthesis of silicone derivatives that provide emolliency and conditioning in hair and skin care products.
• Fiber & Textile Treatment: Applied to confer softness, water repellency, and durable press properties to fabrics.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, Hydroxy- And Methoxy-Terminated
CAS No.	67923-22-2
Molecular Formula	Typically a mixture; general form: HO-[Si(CH3)2-O]n-Si(CH3)2-OCH3 and related structures
Molecular Weight	Varies by chain length (n); Contact for details on specific grade viscosity/weight.
Synonyms	Hydroxy Methoxy Terminated Polydimethylsiloxane; Methoxyhydroxy Terminated PDMS; α-Hydroxy-ω-methoxy Polydimethylsiloxane; Dimethyl Siloxane, Hydroxy- and Methoxy-Terminated; Siloxanes and Silicones, dimethyl, hydroxy and methoxy terminated; Hydroxy-Functional Silicone Fluid; Reactive Silicone Fluid; CAS 67923-22-2
EINECS	Contact for details

Quality Control

Our Siloxanes And Silicones, Di-Me, Hydroxy- And Methoxy-Terminated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, hydroxyl value, methoxy content, and purity. Certificates of Analysis (COA) detailing key specifications are provided with every shipment to guarantee compliance with your formulation requirements.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Viscosity (25°C)	Specification available upon request
Hydroxyl Value	Specification available upon request
Methoxy Content	Specification available upon request
Water Content	< 0.1% (Karl Fischer)
Specific Gravity (25°C)	~0.97 - 0.99
Refractive Index (25°C)	~1.402 - 1.406

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