Methyl Hydrogen Silicone Fluid
Methyl Hydrogen Silicone Fluid

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What is Methyl Hydrogen Silicone Fluid (MH Silicone Fluid)?​

Methyl Hydrogen Silicone Fluid (MH Silicone Fluid), also known as polymethylhydrosiloxane (PMHS), is a specialized silicone-based polymer widely recognized for its unique hydrophobic properties and versatility in industrial and consumer applications. With the ​CAS number 63148-57-2, this fluid is engineered to deliver exceptional water resistance and stability, making it a cornerstone in formulations ranging from personal care to industrial coatings.


Key Properties of Methyl Hydrogen Silicone Fluid

  1. Chemical Composition
    Methyl Hydrogen Silicone Fluid features a hybrid structure combining methyl and hydrogen siloxane groups. Its molecular formula, ​C₇H₂₂O₂Si₃, ensures compatibility with diverse substrates while maintaining flexibility and durability.
  2. Physical Characteristics
    • Appearance: Clear, colorless, and odorless liquid.
    • Viscosity: Adjustable from 10–40 cSt at 25°C, depending on formulation needs.
    • Thermal Stability: Operates effectively across a broad temperature range (-50°C to 200°C).
    • Flash Point: ≥120°C, enhancing safety in high-temperature applications.
  3. Hydrophobic Performance
    MH Silicone Fluid forms an invisible, flexible film on surfaces, repelling water and moisture. This property is critical in applications like waterproofing gypsum boards, textiles, and electronics.

Applications Across Industries

  1. Personal Care & Cosmetics
    • Used in skincare formulations to create water-resistant films, extending the efficacy of sunscreens and moisturizers.
    • Enhances the wearability of foundations and lipsticks by improving texture and spreadability.
  2. Industrial Coatings
    • Applied to glass, ceramics, and metals to prevent water ingress and corrosion.
    • Acts as a release agent in molding processes, ensuring smooth demolding of plastics and rubber.
  3. Construction Materials
    • Integral in waterproofing gypsum boards and plaster blocks, offering long-term protection against humidity.
  4. Electronics
    • Functions as an insulating fluid in circuit boards, protecting components from moisture and dust.

Technical Specifications

ParameterValue
CAS Number63148-57-2
Molecular Weight222.5 g/mol
Density (25°C)0.995–1.015 g/cm³
Refractive Index (25°C)1.390–1.410
Hydrogen Content1.50–1.66%

Why Choose Biyuan Methyl Hydrogen Silicone Fluid?​

Biyuan’s MH Silicone Fluid stands out for its ​precision engineering​ and ​commitment to quality. Leveraging advanced polymerization techniques, Biyuan ensures consistent viscosity, optimal hydrophobicity, and compatibility with global safety standards (e.g., REACH, RoHS). Our products are available in bulk packaging (200 kg drums, IBC tanks) to meet industrial demands while maintaining cost efficiency.


Safety & Handling

  • Storage: Keep in cool, dry conditions away from direct sunlight.
  • Handling: Use PPE (gloves, goggles) to avoid skin/eye contact.
  • Disposal: Follow local regulations for chemical waste management.

Conclusion

Methyl Hydrogen Silicone Fluid (CAS 63148-57-2) is indispensable in modern industries for its water-repellent and film-forming capabilities. Whether enhancing product longevity in cosmetics or protecting construction materials, Biyuan’s MH Silicone Fluid delivers reliable performance backed by rigorous testing and sustainable practices.

For tailored solutions, explore Biyuan’s product portfolio—designed to elevate efficiency and innovation across sectors.

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