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CAS 63148-57-2 Silicones Fluid

SC-71-SS Mercapto Silicone Fluid | Low SH

SC-71-SS is a low-thiol (–SH) mercapto silicone fluid with balanced viscosity and low sulfur content. It’s designed for advanced surface treatments and polymers needing controlled reactivity, precise crosslinking, and improved adhesion.

Product Introduction:

SC-71-SS is a low-thiol (–SH) functional mercapto silicone fluid, designed for advanced surface treatments and polymer formulations that require controlled reactivity. Featuring a balanced viscosity and low sulfur content, SC-71-SS enables precise modification of crosslinking density, adhesion behavior, and compatibility across diverse systems.

Technical Specifications

PropertyTypical Value
Chemical TypeMercaptopropyl-functionalized siloxane
Viscosity (@25°C)~100 cP
Thiol (–SH) Content~1.0 wt%
Refractive Index~1.4103
Density (@25°C)~0.97 g/cm³
SolubilitySoluble in hydrocarbons, compatible with PDMS
CAS NumberProprietary / available upon request

Key Features of SC-71-SS

  • Controlled Reactivity:
    ~1.0% thiol content offers moderate functional activity, ideal for systems where excessive crosslinking or rapid curing must be avoided.

  • Excellent Processability:
    Moderate viscosity (~100 cP @25°C) ensures smooth integration into formulations and good flow behavior in application systems.

  • Formulation Compatibility:
    Soluble in aliphatic/aromatic hydrocarbons and dimethylsiloxane bases, allowing easy blending with coatings, adhesives, and silicone resins.

  • Thermal & Chemical Stability:
    Maintains stability under elevated temperature and oxidative environments for improved end-use performance.

Application Areas

SC-71-SS is engineered for industries where silicone-surface functionality and reactivity must be precisely tuned:

  • Mold Release Systems
    Effective as a low-reactivity release agent for metal, rubber, and plastic moldings, minimizing buildup and extending tool life.

  • Radiation-Curable Formulations
    Functions as a reactive additive in UV and EB-curable inks and coatings, improving substrate wetting and crosslinking efficiency.

  • Anticorrosion Metal Coatings
    Provides chemical affinity to metal surfaces, improving barrier properties and adhesion of topcoat systems.

  • Polymer Grafting & Copolymerization
    Used as a reactive intermediate in silicone-organic hybrid synthesis or as a modifying agent in specialty polymers.

Packaging Options:

We offer flexible packaging for both R&D and bulk industrial use:

  •  1 kg & 5 kg HDPE bottles (sample/lab-scale)

  •  25 kg pails & 200 kg drums (industrial production)

  •  1000 kg IBC totes available on request

  •  Custom viscosity grades and formulations available under Silico® brand lines

All technical data provided is based on current knowledge and experience. Users must test product suitability for intended applications.
No warranties are expressed or implied. Silico® assumes no liability for incidental or consequential damages.

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