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Product Code:SP3250

Product Name:High RI Methyl Phenyl Silicone Fluid

Product Introduction:

This product is synthesized from silane monomers with high phenyl content through hydrolytic copolymerization, molecular structure regulation and vacuum rectification. Increasing the proportion of phenyl groups enables precise enhancement of the refractive index. It is a colorless transparent oily liquid with a high refractive index and excellent optical transparency. It features outstanding resistance to extreme temperatures, aging and radiation, as well as favorable electrical insulation and chemical stability. It resists corrosion and oxidation and boasts superior optical matching performance. It is mainly used for filling of optical lenses, coupling and bonding of optical components, and LED optoelectronic packaging. It also serves as high-end optical damping medium and moisture-proof insulating oil for precision instruments, and is widely applied in high-end manufacturing sectors including optoelectronics and optical instruments.

Basic Information

  • Chinese name:高折光甲基苯基硅油
  • CAS number:[63148-52-7]
  • Molecular formula:

Structural formula

Physical properties

Product standard

  • T/FSI 129-2023

Technical indicators

Project Indicator
Appearance Colorless or yellowish transparent liquid
Color, APHA 20~50
Viscosity 25℃, mm²/s 30~30000
Refractive Index, 25 ℃ 1.4700~1.5500
Flash Point (open cup), ℃ >280
Freezing Point, ℃ <-40
Density 25℃, g/cm³ 1.000~1.100
Volatile 150℃/3h, % <3

Characteristic advantages

  • High phenyl content, high refractive index, high flash point.
  • Excellent high thermal stability for ultra-high temperature applications.
  • Excellent radiation resistance and insulation.
  • Excellent lubrication and release capability.

Application field

  • Used for drag reduction, bath heat, lubrication in high temperature environment.
  • Used to provide insulation for capacitors and transformers.
  • Base oil for high temperature greases.
  • Heat transfer medium for electronic components.
  • Used as an additive in the cosmetic industry.

Safe handling

  • Wear eye protection and protective gloves as required while handling the product.
  • Use the product in a well ventilated area.
  • Please consult our MSDS.

Use storage

  • When stored in its original container below 40°C and unopened, the shelf life is 2 years. It can still be used after re-inspection.
  • Store in a cool and dry place out of direct sunlight.
  • Keep out of the reach of children.

Packaging Information

  • Available in 25KGS drum, 200KGS drum or 1000KGS IBC.