Description

Dimethylsiloxane/Hexamethylcyclotrisiloxane/Fluorosilicone is a specialized fluorosilicone polymer blend that combines the thermal stability and chemical resistance of fluorinated groups with the flexibility and release properties of siloxanes. This engineered material is critical for applications demanding exceptional performance under extreme environmental conditions where standard silicones fail. It is an essential raw material for manufacturers in the aerospace, automotive, and high-performance industrial sealing sectors seeking reliable, long-lasting elastomeric components.

Application

• High-Temperature Gaskets & Seals: Primary material for O-rings, shaft seals, and gaskets in automotive and aerospace engines, offering stability from -60°C to 200°C+.
• Fuel System Components: Used in diaphragms, hoses, and valve seals resistant to fuels, oils, and hydrocarbon-based fluids.
• Aerospace & Aviation Sealing: Critical for sealing applications in aircraft where resistance to jet fuels, hydraulic fluids, and wide temperature swings is required.
• Chemical Process Industry (CPI) Equipment: Manufacture of seals and linings for pumps and valves handling aggressive solvents and chemicals.
• Electrical Connector Sealing: Provides environmental sealing for electrical connectors in harsh conditions, offering excellent dielectric properties and moisture resistance.
• Mold Release Agents: Formulation base for high-performance, non-stick release coatings for plastics and composites, especially in high-temperature molding processes.

Basic Information

Product Name	Dimethylsiloxane/Hexamethylcyclotrisiloxane/Fluorosilicone
CAS No.	69430-43-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Fluorosilicone Oil; Fluorosilicone Fluid; Poly[methyl(3,3,3-trifluoropropyl)siloxane]; Trifluoropropylmethylsiloxane-dimethylsiloxane Copolymer; FVMQ (Fluorosilicone Rubber) precursor; Methyl 3,3,3-trifluoropropyl siloxane copolymer; Fluoro Silicone; FS-1265 (common trade name reference)
EINECS	Contact for details

Quality Control

Our fluorosilicone products are manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability. Quality is verified through a series of tests including viscosity, specific gravity, fluorine content, and volatile matter analysis. Certificates of Analysis (COA) documenting key specifications are provided with every shipment. We adhere to relevant industry standards and can support compliance requirements for global markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. 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
Specific Gravity (25°C)	Specification available upon request
Fluorine Content	Specification available upon request
Volatile Matter	≤ 1.0%
Refractive Index (25°C)	Specification available upon request

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