Description

Dimethyl Polysiloxane-Dimethyl Hydrogen Terminated is a reactive, low-viscosity silicone fluid characterized by its terminal Si-H (silicon-hydrogen) bonds. This chemical structure provides a versatile platform for cross-linking and modification, making it a crucial intermediate in silicone polymer synthesis. It is essential for manufacturers in the silicone rubber, release agents, and specialty coatings industries seeking to create custom polymers with tailored properties.

Application

• Silicone Rubber Cross-linking Agent: Acts as a key hydrosilylation component for curing and vulcanizing high-performance silicone elastomers.
• Intermediate for Silicone Fluids & Resins: Serves as a building block in the synthesis of custom dimethylsiloxane copolymers and modified silicone oils.
• Release Agent Formulation: Used in the production of non-stick coatings and mold release agents for plastics, rubber, and composite materials.
• Water Repellent Treatments: Imparts hydrophobic properties to textiles, paper, and construction materials.
• Adhesive & Sealant Modifier: Enhances adhesion, flexibility, and weather resistance in silicone-based adhesives and sealants.
• Surface Modification Agent: Used to functionalize inorganic fillers (like silica) to improve compatibility in polymer composites.

Basic Information

Product Name	Dimethyl Polysiloxane-Dimethyl Hydrogen Terminated
CAS No.	69430-48-4
Molecular Formula	(C2H6OSi)n (General representation for polydimethylsiloxane, hydrogen terminated)
Molecular Weight	Varies by chain length (n)
Synonyms	Hydrogen-Terminated Polydimethylsiloxane; PDMS, H-Terminated; α,ω-Dihydrogen Polydimethylsiloxane; Hydride-Terminated Polydimethylsiloxane; Poly(dimethylsiloxane), dimethylhydrogen terminated; Silicone Hydride Fluid; Reactive Silicone Oil; Methylhydrogen Siloxane-Dimethylsiloxane Copolymer
EINECS	Contact for details

Quality Control

Our Dimethyl Polysiloxane-Dimethyl Hydrogen Terminated is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent hydrogen content, viscosity, and purity, meeting the precise requirements of polymer synthesis. Certificates of Analysis (COA) detailing key specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizers and bases. Recommended storage temperature is 15-25°C. The product is moisture-sensitive; containers must be kept sealed to prevent reaction with atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Complies
Viscosity (25°C)	Specification available upon request
Hydrogen Content	Specification available upon request
Specific Gravity (25°C)	0.96 - 1.00
Refractive Index (n20D)	1.400 - 1.410
Volatile Content	< 1.0%

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