Dimethicone- ▸ High-damping-action instrument fluid for military, industrial and avionic gauges, meters and monitors (meets VV-D-1078)
- ▸ Vibration / pulsation / torque damping in dashpots, rotary dampers, level controllers, valves and flow meters
- ▸ Dielectric / electrical insulating fluid with moisture and corrosion protection
- ▸ Lubricant for rubber, plastic and metal parts and O-rings/valves (not recommended for silicone rubber — swelling)
- ▸ Release agent and plastics / textile additive and antifoam
Mid- and high-viscosity polydimethylsiloxane fluids (>= 5 cSt) are reported as not meeting GHS hazard-classification criteria. The grade-specific SDS governs. A full SDS is supplied with every shipment and on request; hazard status is confirmed against the grade-specific SDS.
Silicone Oil 100,000 cSt is an instrument-and-avionic damping fluid. Very high viscosity with a low viscosity-temperature coefficient, high shear resistance and high compressibility gives steady, temperature-insensitive damping for precision instruments (it meets Federal Spec VV-D-1078), and it doubles as a dielectric fluid and a slow-migrating release and plastics/textile additive.
Frequently Asked Questions
What is silicone oil 100,000 cSt used for?
Silicone Oil 100,000 cSt is a very high-viscosity PDMS (dimethicone) fluid used in vibration damping, heavy lubrication, and specialty formulation where an extremely thick, slow-flowing silicone is required. Match the viscosity grade to your specific application.
What does cSt mean for silicone oil?
cSt is centistokes, the unit of kinematic viscosity. For dimethicone (CAS 9006-65-9), 100,000 cSt indicates a very heavy, nearly gel-like flow, among the highest-viscosity grades offered.
What is the CAS number for silicone oil 100,000 cSt?
Silicone oil (dimethicone, PDMS) carries CAS 9006-65-9 with repeating-unit formula (C2H6OSi)n. The 100,000 cSt designation is the viscosity grade, not a separate CAS; all dimethicone grades share this number.
How does 100,000 cSt differ from lower silicone oil grades?
It is dramatically thicker and slower-flowing than 1,000 or 10,000 cSt fluids, with much longer PDMS chains. The chemistry (CAS 9006-65-9) is the same across grades; only viscosity differs.
What is the cost of bulk silicone oil 100,000 cSt?
Bulk pricing depends on volume, packaging, and current supply, so RawSource does not list a fixed price. Request a bulk quote with your target volume and packaging and we will provide current pricing; CoA and SDS are available on request.
