Super Hi-Viscosity Pure Silicone Fluids range from 300,000cSt to 20,000,000cSt (centistokes). They are extremely viscous fluids that provide high damping action and meet VV-D-1078.

Synonyms: dimethylpolysiloxanes, polydimethylsiloxane, methylpolysiloxane, polydimethylsiloxanes, silicone oil, liquid silicone, silicone liquid, 100% silicones, dimethyl silicone oils, dimethicone, CAS 63148-62-9, CAS# 63148-62-9, CAS63148-62-9, dimethicones, silicone heat transfer fluids, high molecular weight silicone, high viscosity silicone, 300,000cps silicone damping fluid, 600,000cps silicone, 1 million cps silicone, 2.5 million cps silicone, electrical insulator fluid, non-conductive silicone fluid, differential oil, silicone diff oil, diff oil, PDMS, PDMS silicone, remote control car damper fluid, remote control car silicone, silicone shock oil, silicone shock oils, Dow Corning 200® silicone oils, General Electric Silicone, GE SF96 silicone, SF96 fluids, GE SF96 silicones, Dow Corning 200® silicone oils, DC 200® silicone fluids, VV-D-1078, VV-D-1078 Damping Fluid, Wacker AK silicone, Wacker AK silicones, Wacker AK fluids, Rhodia silicones, Shinetzu silicones, Shinetzu DM-fluids, 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, high viscosity PDMS, hi vis PDMS, stadium seating damping fluid, stadium seating damper.

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 fluids
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	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
20,000,000cSt	0.979	1.4035	-35°C	0.62	321°C	0.00092	>500,000

Clearco Pure Silicone Fluids (Polydimethylsiloxane 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)

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View MSDS:

300,000cSt | 600,000cSt | 1,000,000cSt | 2,500,000cSt | 20,000,000cSt

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