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High Viscosity Fluids (5,000 Cst - 100,000 Cst)


Viscosity (cSt)Specific GravityRefractive IndexPour PointFlash Point (open cup)V.T.CThermal Expansion (cc/cc °C)Thermal Conductivity g/cal/cm/sec °C
5,000cSt 0.975 1.4035 -50°C 315°C 0.61 0.00096 0.00038
10,000cSt 0.975 1.4035 -48°C 315°C 0.61 0.00096 0.00038
12,500cSt 0.975 1.4035 -48°C 315°C 0.61 0.00096 0.00038
30,000cSt 0.975 1.4035 -42°C 315°C 0.61 0.00096 0.00038
60,00cSt 0.975 1.4035 -42°C 315°C 0.61 0.00096 0.00038
100,000cSt 0.975 1.4035 -41°C 321°C 0.61 0.00094 0.00038


  • High Viscosity PDMS Silicone Oils
  • High Flash Points
  • Low pour points
  • Wide Service Temperature Range
  • Low viscosity change at temperature (low VTC)
  • RI Matching Fluids for RI Value 1.4035
  • High Dielectric Strength
  • High Damping Action
  • High Oxidation Resistance
  • Stable under high rates of pressure
  • Stable under high rates of shear
  • Excellent Lubricity


  • Damping Fluids for Gauges, Instrument & Electronics
  • O‐Ring, Gasket & Valve Lubricant
  • Cable Lubricant
  • Dielectric Fluids
  • Down‐Hole Fluids for Oil & Gas Exploration
  • Hydraulic Fluids
  • Flow Control Fluid
  • High Pressure Fluid
  • Refractive Index Matching Fluids
  • RI Matching Fluids for LED and Optics
  • VOC Exempt Fluids for Renewable Energies
  • Lubricants for Plastic Parts
  • Lubricants for Rubber Parts
  • Fluid for Touch Screen Technology
  • Vibration Control Fluid
  • Calibration Fluid

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, 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, 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, Art Restoration, Touch Screen Technology, Fiber Optics, Touch Monitor Technology, Touch Screen Technology, Temperature and Process Controllers

See also High Viscosity Damping Fluids & Down-Hole Fluids.

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.

MEETS REQUIREMENTS OF NSN CODES: NSN 9150‐00‐664‐3829, NSN 9150‐00‐292‐9608, NSN 9150‐00‐024‐9624, NSN 9150‐00‐257‐5434, NSN 9150‐00‐530‐5232, NSN 9150‐00‐864‐4973, NSN 9150‐00‐261‐8326, NSN 9150‐00‐ 292‐9609, NSN 9150‐00‐286‐8088.

ENVIRONMENTAL 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.