Super High Viscosity Pure Silicone Fluids
Chemical Name: Polydimethylsiloxane (PSF or PDMS)
CAS No: 63148-62-9
Viscosities: 300,000cSt, 600,000cSt, 1,000,000cSt (1million cSt) & 2,500,000cSt (2.5 million cSt), 20,000,000cSt (20 million cSt) (PDF)
Product Equivalent: Dow Corning® 200-300,000cs, DC 200-300,000cs, DC 200-600,000cs, DC 200-600,000cs, DC 200-1,000,000cs, DC 200-2,500,000cs, GE Viscasil 300M, GE Viscasil 600M, GE Viscasil 1M, GE Viscasil 60M, GE Viscasil 100M, Rhodorsil 47V300000, 47V600000, Wacker AK 300000, Wacker AK 600000, Wacker AK 1000000
Use: Clearco Super-High Viscosity Pure Silicone Fluids are clear, colorless and odorless linear Polydimethylsiloxane oils (Polydimethylsiloxanes) that range in viscosities from 300,000cSt, 600,000cSt, 1 million cSt, 2,500,000cSt (2.5 million cSt) & 20,000,000cSt (20 million cSt).
Super Hi-Vis Silicone Fluids are characterized by their high damping action, extremely high viscosities, high molecular weight, 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.
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, and o-ring, gasket, valve and seal lubricants. In addition, they are used to coat and lubricate a wide range of o-rings, gaskets, valves and seals.
Typical Properties:
- Clear, colorless, odorless
- Extremely High Viscosities
- Non-Flammable
- High Damping action
- 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
- Meet Mil Spec VV-D-1078
- VOC Exempt
- High molecular weight
* although not recommended for silicone o-rings
Product Data
| Viscosity | Specific Gravity | Refractive Index | Pour Point | Viscosity/ Temp Coefficient | Flash Point | Thermal Expansion cc/cc/C 0-150®C | Molecular Weight |
| 300,000cSt | 0.977 | 1.4035 | -41®C | 0.61 | 321®C | 0.00092 | 204,000 |
| 600,000cSt | 0.978 | 1.4035 | -41®C | 0.61 | 321®C | 0.00092 | 260,000 |
| 1,000,000cSt | 0.978 | 1.4035 | -39®C | 0.62 | 321®C | 0.00092 | 308,000 |
| 2,500,000cSt | 0.978 | 1.4035 | -38®C | 0.62 | 321®C | 0.00092 | 423,000 |
Clearco Standard 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.
Availability: 1 –gallon (3.5kg), 5-gallon pail (18kg) & 55-gallon drum (200kg)