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PM-50 Phenylmethyl Silicone Fluid

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PM-50 Silicone Fluid is a clear, colorless and odorless Phenylmethyl Silicone Oil with a viscosity of 50cSt @ 25°C. It replaces methyl groups found in conventional PDMS Silicone oils with Phenyl groups. In doing so, thermal stability and resistance to oxidation are significantly increased. PM-50 remains stable at 204°C (open to air) and 260°C (closed to air). The fluid is further characterized by its high flash point, high dielectric strength, stability at extreme pressures, excellent lubricity and inertness to virtually all substrates.

Chemical Name: Dimethyl, Phenylmethylsiloxane
CAS No: 63148-52-7

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Description

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Availability: 1‐gallon (3.7kg net wt.), 5‐gallon pail (18.5kg net wt.), 55‐gallon drum (200kg net wt.)

PM‐50 is a low phenyl content fluid with a viscosity of 50cSt @ 25°C. In comparison to conventional PDMS silicone oils, PM‐50 has much higher thermal stability and remains stable at temperatures > 200°C (open system). Unlike the higher phenyl content PM‐125 & PPM‐500, its viscosity remains pourable at low temperatures (low VTC=viscosity‐to‐temperature coefficient), which makes PM‐125 an excellent choice for laboratory baths and heat transfer systems that circulate and pump the fluid at low temperatures.

As a calibration fluid, PM‐50 Silicone Fluid is widely used in Flow Control, Temperature Control and Motion Control technologies. Again, its advantage over conventional oils is that it will not break down at high temperatures and it will not coagulate at high pressures. It is widely used for instruments, gauges, sensors, meters and devices that are subject to extreme temperatures and high pressures.

PM‐50 Silicone Fluid has a higher RI value (1.425) than conventional PDMS silicone. It an excellent RI index matching fluid and optical fluid for use in sensor /imaging / LED and Photonics technologies that require a higher RI value than conventional fluids.

Typical Product Data:

Viscosity @ 25°C Specific Gravity Viscosity Temp Coefficient Pour Point °C Flashpoint °C Ignition Temp °C Refractive Index Surface Tension
50cSt 0.985 0.655 -57°C 275°C 482°C 1.425 25.0

Dielectric Properties:

Electrical Strength Permittivity @ 100Hz Permittivity @ 1MHz Dissipation factor @ 100Hz Dissipation factor @ 1MHz Volume resistivity ohm.cm Dielectric Constant
13.8kV/mm 2.77 2.77 0.0003 0.00005 1x10hz 2.77

Thermal Properties:

Thermal Conductivity Specific Heat @ 100°C Coefficient of Expansion cc/cc/°C Gel Time, hours 250°C in Air
0.15 W/(m.K) 0.405 0.00096 220‐260 hrs.

Viscosity @ Temperature:

Temperature Viscosity
99°C 14cSt
38°C 38cSt
25°C 50cSt
-29°C 275cSt
-48°C 520cSt
-57°C 1,020cSt

Properties:

  • High Flash Point
  • Formulated for stability at both low high temperature
  • Low viscosity change at temperature (low VTC): easy to pump and circulate the fluid at low temperature
  • High Refractive Index RI 1.425
  • High Dielectric Strength
  • Hydrophobic
  • Stable under high rates of pressure
  • Stable under high rates of shear
  • Excellent Lubricity

Applications Include:

  • High Temperature Laboratory Bath Fluid
  • Low Temperature Bath Fluid
  • High Temperature Heat Transfer Fluid
  • Low Temperature Heat Transfer Fluid
  • High Temperature Dielectric Fluid
  • High Temp /High Pressure Fluid
  • High Temperature Fluids for Flow Control Fluid
  • Refractive Index Matching Fluid
  • High RI Matching Fluids for LED and Optics
  • High Temp Silicone Lubricants for Plastic Parts
  • Silicone Lubricants for Rubber Parts
  • High Temperature Calibration Fluid
  • Fluid for Touch Screen Technology

 

Industries & Fields of Research include:R&D, Education, Defense, Oil & Gas Exploration, Energy, Aviation, Aerospace, Life Sciences, Renewable Energies, Turbine Technology, Wind Power Technology, Temperature Control Technologies, Geothermal, Solar Industry, Sensor Technology, Geosciences, Electronics, Environmental, Electrical Testing, Optics, LED, Photonics, MEMS Technology, Refractive Index Matching Digital Display Technology, Flow Control, Flow Meters, Deep Sea / Subsea Technologies, Dielectric Fluids for Wire & Cable, Deepwater, ROV Technologies, Laser Technology Research, Earth & Atmospheric Sciences, Seismic Research, Oceanography Research, Physical Sciences, Chemical Engineering, Mechanical Engineering, 3D Printing Technology, Plasma Research, LCD Technologies, Polymer Research, Computer Engineering Research, Robotics Research, Plastic Manufacturing, Rubber Manufacturing, Hydraulics, Nanotechnology Research, Geothermal, Fuel Cell Technology, Hydrophobic Coatings, Lighting Systems, Seismology, Aeronautics, Pipe & Tubing Systems, Printing Industry, Industrial Cleaning, Touch Screen Technology, Fiber Optics, Touch Monitor Technology, Touch Screen Technology, Temperature and Process Controllers

Environmental: Silicone Fluids are exempt from Federal VOC regulations, including California (CARB) and OTC regulations. They are HAP‐free and do not contribute to ozone‐depletion and global warming. In addition, they meet RoHS Compliancy.

PM‐50cSt is a low phenyl content silicone oil that can be used at both low and high temperatures

High RI value….used in LED and Optics technology and research
Wide service temperature range and low viscosity change makes it an excellent laboratory bath fluid

Synonyms:

High temperature silicone oil, high temp silicone fluid, high temperature laboratory bath fluid, high temperature silicone bath fluid, high temperature dielectric fluid, high temperature dielectric coolant, high flash point silicone oil, high RI Matching Silicone Oil, high temperature Refractive Index matching Silicone Oil, , high temperature silicone for thin film coatings, High temperature Silicone Oil for Laboratory research, silicone oil for subsea, High temperature Silicone oil for Oil & Gas Exploration, high temperature silicone oil for Aviation, silicone oil for Aerospace, high temperature Silicone oil Renewable Energies, high temperature Silicone for Temperature Control Technologies, high temperature Silicone oil Geothermal, high temperature Silicone Oil Solar Industry, high RI Index oil for Sensor Technology, high temperature silicone fluid for Electronics, high temperature silicone lubricant