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Silico® Silicone Fluids – Professional Silicone Fluids Manufacturer in China

Silico® is a globally recognized manufacturer specializing in the research, development, and production of premium-grade silicone fluids. With advanced facilities and a commitment to innovation, we deliver high-purity linear and functional silicone fluids engineered to meet the exacting demands of modern industries.

Trusted Silicone Fluid Solutions for Diverse Applications

Silico® offers a comprehensive portfolio of silicone-based fluids with viscosities ranging from 0.65 to 1,000,000 mm²/s, designed to perform in extreme temperature environments (–60°C to +300°C) and under thermal oxidative stress, UV exposure, and radiation.

We provide both standard dimethylsilicone fluids and customized functional silicone fluids modified with reactive groups (e.g., hydroxyl, amino, epoxy) for enhanced compatibility and crosslinking in specialized systems.

Key Features of Silico® Silicone Fluids

  • Wide temperature stability: –60°C to +300°C

  • Excellent thermal and oxidative resistance

  • Low volatility and surface tension

  • Hydrophobic or hydrophilic surface properties

  • Non-toxic, transparent, and environmentally safe formulations

  • Available in both standard and modified grades

Silico® Linear Silicone Fluids

Polydimethylsiloxane (PDMS)

Grade Name Viscosity Range (cSt) Description
ULV Ultra-Low Viscosity 0.65 – 1 cSt Extremely low viscosity, water-like flow; ideal for high-penetration applications
LV-A Low Viscosity A 5 – 20 High fluidity; suitable for spray cosmetics, lubricants
LV-B Low Viscosity B 50 – 100 For gloss, water resistance, and fabric care; balances flow and durability; ideal for personal care use.
SV-A Standard Viscosity A 200 – 500 For mold release agents, silicone oil additives with moderate flow
SV-B Standard Viscosity B 800 – 1,000 General-purpose silicone oil for industrial formulations
SV-C Standard Viscosity C 3,000 – 5,000 Used in lubrication, heat transfer, coatings, eye surgery, textiles, and personal care products.
HV-A High Viscosity A 10,000 – 30,000 Thick texture; used for structural additives or viscosity modification
HV-B High Viscosity B 50,000 – 100,000 Paste-like feel; ideal for sealants and potting compounds
UHV-A Ultra-High Viscosity A 300,000 – 800,000 Non-flowing, excellent stringiness; used in high-performance sealants
UHV-B Ultra-High Viscosity B 1,000,000 – 2,500,000 Maximum consistency; for structural adhesives and tacky sealing systems
>> Polydimethylsiloxane(PDMS)

Phenyl Silicone Fluids

CAS NO. Product Name Typical Viscosity
70131-69-0 PC19816 Phenyl-Modified polymethylphenylsiloxane 15 – 30 cSt
70131-69-0 PC19826 Phenyl Trimethicone 10 – 50 cSt
63148-52-7 PF8250 Polyphenylmethyl dimethylsiloxane 25 – 40 cSt
63148-52-7 PF8255 polyphenylmethylpoly dimethylsiloxane 500 – 1000 cSt
63148-58-3 PF8260 Polymethylphenylsiloxane 50–500 cSt
3982-82-9 PF8704 Silicone Diffusion Pump Fluid 36 – 44 cSt
3982-82-9 PF8705 Silicone Diffusion Pump Fluid 40 – 50 cSt
68037-54-7 PF9181 Methyl Phenyl Cyclosiloxane 500 cSt
68083-14-7 DP801 Polydiphenylsiloxane Fluid 100 – 500 cSt
9005-12-3 PM901 Phenyl-Modified Polymethylsiloxane 350 – 1000 cSt
>> Other Phenyl Silicone Fluids

Fluoro-Modified PDMS

CAS NO. Product Name Typical Viscosity
63148-56-1 FF9020 Fluorosilicone Fluid 300 – 1,000 cSt
63148-56-1 FF9020 Fluorosilicone Fluid 10,000 – 13,000 cSt
68607-77-2 FS8012 Hydroxyl-Terminated Fluorosilicone Fluid 500–2,000 cSt
68951-98-4 FV4012 Vinyl-Terminated Fluorosilicone Fluid 1,000 – 5,000 cSt
68952-30-7 FH20789 Hydride-Terminated Fluorosilicone Fluid 100 – 1,000 cSt
N / A FE Series Polyether-Modified Fluorosilicone Fluids 300 – 2,500 cSt
>> Other Fluorosilicone Fluids

Vinyl Silicone Fluids (1)

CAS NO. Product Name Typical Viscosity
68083-19-2 V401 Vinyl Silicone Oil (Linear Type) 10 – 10,000 cSt

Silico® Functional Silicone Fluids

Hydroxy (–OH) Terminated PDMS

Amino (–NH₂ / –NH–) Modified Silicone Fluids

Epoxy (–CH(O)CH₂) Modified Silicone Fluids

Carboxyl (–COOH) Modified Silicone Fluids

Vinyl (–CH=CH₂) Terminated PDMS

CAS NO. Product Name Typical Viscosity
67762-94-1 PV401 Phenyl Vinyl Silicone Oil 500-2500 cSt
68083-19-2 V402 Vinyl Silicone Oil 600 cSt
63148-62-9 V411 Vinyl Silicone Oil (Branched Type) 1,000 – 10,000 cSt
68083-19-2 V421 Vinyl Silicone Oil (Linear and Branched Type) 180 – 1300 cSt
N/A V4011 Vinyl Silicone Oil Emulsion 180 – 1300 cSt
68083-19-2 PV501 Vinyl-Terminated Polymethylvinylsiloxane 800 – 3500 cSt
63148-57-2 V4011 Vinyl Silicone Oil Emulsion 50 – 200 cSt
>> Other Vinyl Silicone Oils

Mercapto (–SH) Silicone Fluids

CAS No. Product Name Thiol content
Proprietary SC-367 Mercapto Silicone Fluid | SH-Functional 5.4% (by weight)
Proprietary SC-71-SS Mercapto Silicone Fluid | Low SH 1.0% (by weight)
Proprietary SC-800 Mercapto Functional Silicone Fluid 2% (by weight)
Proprietary SC-710 Mercapto Functional Silicone Fluid 0.28% (by weight)
101810-99-5 /
102783-03-9
SC-SiF2060 Mercapto Silicone Fluid 0.28% (by weight)
102783-03-9 SMS Series Mercapto Silicone Fluids 2-17% (by weight)
308072-58-4 Mercaptopropyl-Terminated Polydimethylsiloxane Terminal thiol groups
>> Other Mercapto Functional Silicone Fluids

Polyether (-PEG/PPG) Modified Silicone Fluids

Quaternary (–N⁺(CH₃)₃Cl⁻) Silicone Fluids

CAS NO.Product NameTypical Viscosity
134737-05-6SQ-80 Quaternary Ammonium Silicone Fluid500–900cSt

Applications of Silicone Fluids

Silico® silicone fluids are trusted by manufacturers and formulators worldwide in sectors such as:

  • Electronics and electrical insulation (dielectric fluids, transformer oils)

  • Automotive and aerospace (lubricants, damping fluids, heat transfer oils)

  • Textiles and industrial coatings (softeners, water repellents)

  • Pharmaceutical and personal care (cosmetic-grade silicone oils)

  • Digital printing and release coatings (anti-stick and leveling agents)

About Silicone Fluids

Chemical Structure

Chemical Structure

Silicone Fluid, mainly polydimethylsiloxane (PDMS), has the structure [–Si(CH₃)₂–O–]ₙ. Its siloxane backbone with methyl side groups provides high flexibility, thermal stability, and low surface tension—key to silicone fluid's lubricating, insulating, and hydrophobic properties.

Physical Properties

Physical Properties

Silicone fluid features low viscosity-temperature coefficient, excellent thermal stability, wide operating temperature range (−60°C to 250°C), low surface tension, high dielectric strength, and strong water repellency. These properties make it ideal for lubrication, insulation, and defoaming applications.

About Silicone Fluids FAQs

1. What are the main applications of silicone fluids?

Silicone fluid is used in a wide range of industries for lubrication, thermal insulation, dielectric cooling, antifoaming, and cosmetic formulations, due to its high thermal stability and low surface tension.

2. Is silicone fluid safe to use?

Yes. High-purity grades of silicone fluid are non-toxic, chemically inert, and biocompatible, making them suitable for use in cosmetics, pharmaceuticals, and medical devices.

3. How heat-resistant is silicone fluid?

Silicone fluids offer exceptional thermal stability, typically functioning between −60°C to +250°C. Specialty grades can tolerate even higher temperatures without decomposition.

4. Is silicone fluid hydrophobic or water-soluble?

Silicone fluid is strongly hydrophobic and insoluble in water, making it ideal for water-repellent coatings, release agents, and foam control in aqueous systems.

5. How does silicone fluid compare to mineral oil?

Compared to mineral oil, silicone fluid provides better temperature resistance, oxidation stability, dielectric strength, and longevity, especially in demanding or high-performance environments.

Packaging Specifications

Packaging Specifications

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How to Choose the Right Silicone Fluid?

Choosing the right silicone fluid depends on your application’s specific performance needs. Key factors include:

  • Viscosity: Low-viscosity silicone fluids are ideal for lubrication and heat transfer, while higher viscosities suit damping, sealing, or dielectric use.

  • Thermal Stability: Ensure the fluid can handle your temperature range. Methyl or phenyl-modified fluids offer stability from −60°C to 250°C or more.

  • Chemical Compatibility: Select fluids that are inert and non-reactive with other system components to prevent degradation or cross-reactions.

  • Application-Specific Properties: Use high dielectric strength silicone for electronics, hydrophobic types for coatings, or medical-grade fluids for biocompatibility.

Consult technical datasheets to match fluid properties with performance needs.

Silico® silicone fluids offer reliable solutions across industries—engineered for consistency, safety, and performance.

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