Super High Viscosity Silicone Damping Fluids

Chemical Name: Polydimethylsiloxane Fluid / PDMS Silicone Oil

CAS No: 63148-62-9

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View SDS:
PSF-300,000cSt Silicone Damping Fluid (CAS# 63148-62-9)
PSF-600,000cSt Silicone Damping Fluid (CAS# 63148-62-9)
PSF-1,000,000cSt Silicone Damping Fluid (CAS# 63148-62-9)

Availability: 1‐gallon (3.785 liters), 5‐gallon pail (18.9 liters) & 55‐gallon drum

Product Equivalent: DC 200®, Fluid 300,000 cs, DC 200®, Fluid 600,000 cs, DC 200®, Fluid 1,000,000 cs, Xiameter® PMX‐200 Silicone Fluid,300,000cSt, Xiameter® PMX‐200 Silicone Fluid, 600,000cSt, Xiameter® PMX‐200 Silicone Fluid, 1,000,000cSt, GE Viscasil® 300M, Viscasil® 600 M, GE Viscasil® 1M Wacker® AK 300000, Wacker® AK 600000, Wacker® AK 1000000, Rhodorsil® 47 V 300000, Rhodorsil® 47 V 1000000, Shinetsu DM‐Fluid‐300,000cs, Shinetsu DM‐Fluid‐500,000cs, Shinetsu DM‐Fluid‐1,000,000cs

Description: Super High Viscosity Silicone Damping Fluids are clear, colorless, and odorless linear Polydimethylsiloxane fluids / PDMS Silicone Oils that range in viscosities from 300,000cSt to 1,000,000cSt (centistokes) @ 25°C. They are characterized by their high damping action, low pour points, high flash points, low viscosity‐to‐temperature coefficients (viscosity changes little even at extremely low temperatures), excellent lubricity, high dielectric strength and RI value of 1.4035.

Silicone Damping Fluids meet Federal Spec VV‐D‐1078 "Silicone as Damping Fluid". They are used in a wide range of military and industrial applications to dampen vibration, dampen pulsation, and dampen torque. The other main application is for use in Flow Control, Temperature Control and Pressure Control Instruments.

Super High Viscosity Silicone Damping Fluids are particularly effective for use in instruments and gauges that require the highest damping action for vibration, pulsation and amplitude of motion. Silicone fluids are hydrophobic and prevent humidity from entering the gauge/instrument housing. This is very important. At low temperatures, water condensation can freeze and cause damage to the sensitive parts within the gauge/instrument housing. Ultimately, Silicone Damping Fluids will extend the service life of the equipment that it fills and provide more accurate readings even in the harshest of conditions.

Typical Product Data:

Viscosity Specific Gravity Refractive Index Pour Point V.T.C Flash Point Surface Tension Thermal Expansion cc/cc °C Molecular weight
300,000cSt 0.977 1.4035 -41°C 0.61 321°C 21.5 0.00092 204,000
500,000cSt 0.977 1.4035 -41°C 0.61 321°C 21.5 0.00092 204,000
600,000cSt 0.978 1.4035 -41°C 0.61 321°C 21.6 0.00092 260,000
1,000,000cSt 0.978 1.4035 -39°C 0.62 321°C 21.6 0.00092 308,000


  • 100% PDMS Silicone Oils
  • High Flash Points
  • Wide Service Temperature Range
  • Highest Damping Action for vibration & sound
  • Low viscosity change at temperature (low VTC)
  • Excellent Lubricant for Plastice & Rubber parts
  • Hydrophobic nature
  • Stable at extreme pressures of Downhole, Drilling and Subsea environments
  • Excellent Lubricant for O‐rings, gaskets, valves & seals
  • RI Value = 1.4035
  • High Dielectric Strength
  • Newtonian behavior under shear
  • Inert to virtually all components

Applications Include:

  • Dampen vibration in gauges, instruments, meters and control equipment
  • Protect internal components against vibration, freezing & corrosion
  • Dielectric Fluids for electronic sensors
  • Silicone Fluids for Cable Industry
  • Hydraulic Fluids for High pressure/high temp
  • High Pressure fluid for Subsea
  • High Pressure fluid for Oil & Gas Exploration
  • Flow Control Technology Fluids
  • Refractive Index Matching Fluids
  • RI Matching Fluids for LED and Optics
  • Low Dielectric Constant Fluids for Photonics
  • VOC Exempt Fluids for Renewable Energies
  • High Viscosity PDMS Silicone Oil for Seismic Research
  • PDMS Lubricants for Plastic Parts
  • PDMS Lubricants for Rubber Parts

Industries & Fields of Research include: R&D, Education, Defense, Oil & Gas Exploration, Energy, Aviation, Aerospace, Telecommunications, Rotorcraft, Renewable Energies, Hose Manufacturers, Tubing Manufacturers, Couplings Manufacturers, Automotive, Valve & Gasket Manufacturers, Automotive, Turbine Technology, Pressure Control Technology, Temperature Control Technologies, Process Measure & Control Technologies, Flow Management Products, Electro‐Hydraulic, Temperature Measurement Technologies, Geothermal, Electronics, Sensor Technology, Geosciences, Environmental, Electrical Testing, Optics, LED, Architectural Testing, Photonics, MEMS Micro‐Electro‐Mechanical Systems, Refractive Index Matching Digital Display Technology, Flow Control Technology, Deep Sea / Subsea Technologies, Wire & Cable Industry, Fluid Power, Cable Manufacturers, Telecommunications Cables, Deepwater, ROV Technologies Earth & Atmospheric Sciences, Seismic Research, Oceanography Research, Geothermal, Physical Sciences, Chemical Engineering, Mechanical Engineering, Polymer Research, Computer Engineering Research, Robotics Research, Wind Technology, Plastic Manufacturing, Thin Film Coating Technology, Hydraulics, Lighting Systems, Seismology, , Aeronautics, Pipe & Tubing Systems, Fiber Optics Technology, Touch Monitor Technology,

Silicone Damping Fluids are widely used in the following: pressure gauges, pressure control instruments, pressure testing equipment, temperature testing equipment, temperature control equipment, pumps, pipeline equipment, flow testing equipment, flow level sensors, electronic sensors, level controllers, rotary dampers, geothermal monitoring equipment, seismology instruments, temperature recorders, temperature measurement equipment, process instruments, process recorders, level sensors, control valves, calibration equipment, flow control instruments, laboratory research instruments, digital display meters, gravity meters, testing equipment, testing instruments, monitoring equipment, pulsation dampeners, level instruments, electro hydraulic actuators, flow meters, thermostats, industrial thermometers, dashpots, aviation instruments, aviation gauges, electronic timer systems, control cables, optical instruments, aviation gyroscopes, process control equipment, test equipment, shock testing equipment, high pressure gauges, subsea gauges, process, gauges, subsea instruments, subsea cables, shock dampeners for R/C vehicles, underwater vehicles, deep sea instruments, deep sea lighting equipment, deep sea cameras, deep sea sensors, deep sea robotics, liquid filled gauges, level controllers, rotary dampers, temperature and process recorders, control valves, calibration equipment, flow meters, thermostats, industrial thermometers, dashpots, monitoring systems, avionic gauges and aviation instruments

Federal Specs Met: meet Federal Specification VV‐D‐1078 "SILICONE AS DAMPING FLUID" and are used in a wide range of military, industrial and avionic gauges, meters, instruments, and monitoring systems.

Environmental: Super High Viscosity 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.