Clearco Products

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High Viscosity Silicones

Hi-Viscosity Silicone Fluids meet VV-D-1078 "Silicone as Damping Fluid" and are used in a wide range of damping applications.

Synonyms: dimethylpolysiloxanes, hi viscosity silicone, hi viscosity dimethyl silicone, polydimethylsiloxanes, high viscosity silicones, 100% silicones, Dow Corning 200® silicone, GE SF96 silicones, dimethyl silicone oils, silicone bath fluids, silicone damping fluids, high viscosity silicones, Dow Corning 200®-10,000cs, Dow Corning 200®-30,000cs, Dow Corning 60,000cs, Dow Corning 200®-100,000cs, GE Viscasil, GE Viscasil 5M, Viscasil 10M, Viscasil 30M, Viscasil 60M, Viscsasil 100M, Momentive Viscasil 5M, Momentive Viscasil 10M, Momentive Viscasil 30M, Momentive Viscasil 60M, Momentive Viscasil 100M, Rhodorsil 47V10000, Rhodorsil 47V100000, Rhodorsil 47V1000000, Rhodorsil 47V12500, Rhodorsil 47V60000, Wacker AK 10000, Wacker AK 30000, Wacker AK 60000, Wacker AK 100000, 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, high viscosity PDMS fluid, hi vis PDMS, dimethyl silicone o-ring lubricant, silicone valve lubricant.

High Viscosity Pure Silicone Fluids

Chemical Name: Polydimethylsiloxane (PSF or PDMS)

CAS No: 63148-62-9

Viscosities:

5,000cSt | 10,000cSt | 12,500cSt | 30,000cSt & 60,000cSt | 100,000cSt | 1,000,000cSt & 2,500,000cSt

Product Equivalent: Dow Corning 200®-10,000cs, DC 200®-30,000cs, DC 200®-60,000cs, DC 200®-100,000cs, GE Viscasil 5M, GE Viscasil 10M, GE Viscasil 30M, GE Viscasil 60M, GE Viscasil 100M, Rhodorsil 47V10000, 47V100000, 47V1000000, Wacker AK 10000, AK 12500, AK 30000, AK 60000, AK 100000

Use: Clearco High Viscosity Pure Silicone Fluids are clear, colorless and odorless linear Polydimethylsiloxane oils (Polydimethylsiloxanes) that range in viscosities from 5,000cSt, 10,000cSt, 12,500cSt, 30,000, 60,000cSt, & 100,000cSt. They are characterized by their high damping action, excellent lubricity, inertness to plastics, rubbers and metals, high dielectric strength, high resistance to shear, thermal stability, wide service temperature range and low viscosity change at temperature.

Due to their high viscosity, inertness and lubricity, High Viscosity Silicone Fluids are widely used as lubricant for o-rings, gaskets, valves and seals.

Clearco High Viscosity Pure Silicone Fluids meet Federal Specification VV-D-1078 "Silicone as Damping Fluid". They are used in a wide range of military, industrial and avionic gauges, meters, instruments, and monitoring systems.

Typical properties:

  • Clear, colorless, odorless fluids
  • High Viscosities
  • Non-Flammable
  • High Damping action
  • Low Temperature stability
  • High Temperature Stability
  • Little viscosity change at temperature
  • Inert to virtually all o-rings, gaskets, seals and valves *
  • Excellent lubrication
  • High oxidation resistance
  • High dielectric strength
  • High water repellency
  • High Shear resistance
  • Meets Mil Spec VV-D-1078
  • VOC Exempt
  • High molecular weight

* although not recommended for silicone o-rings

Product Data

Viscosity Specific Gravity Pour Point Flash Point Viscosity/Temp Coefficient Thermal Expansion cc/cc °C Thermal Conductivity g/cal/cm/sec °C
5,000cSt 0.975 -50°C 315°C 0.61 0.00096 0.00038
10,000cSt 0.975 -48°C 315°C 0.61 0.00096 0.00038
12,500cSt 0.975 -46°C 315°C 0.61 0.00096 0.00038
30,000cSt 0.976 -42°C 315°C 0.61 0.00096 0.00038
60,00cSt 0.976 -42°C 315°C 0.61 0.00096 0.00038
100,000cSt 0.977 -41°C 315°C 0.61 0.00094 0.00038

Clearco High Viscosity Silicone Fluids are exempt from Federal VOC regulations, including California (CARB) and OTC regulations. They are HAP free and will not contribute to ozone-depletion and global warming. In addition, they meet RoHS Compliancy.

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.

Availability: 1 –gallon (3.6kg), 5-gallon pail (18kg) & 55-gallon drum (200kg)

View Polydimethylsiloxane Properties

View Products Specs: View Polydimethylsiloxane Properties

5,000cSt | 10,000cSt | 12,500cSt | 30,000cSt & 60,000cSt | 100,000cSt | 1,000,000cSt & 2,500,000cSt

View NSN Specs Met

View MSDS

View Viscosity Chart

View Silicones Library

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