What is 10 cSt silicone oil used for?
A cosmetic spreading vehicle, dielectric and bath fluid, defoamer in plastics and latex, mold-release and slip additive, and paint flow aid. 10 cSt spreads nearly as fast as 5 cSt but leaves a more persistent film. Typical spec: 0.935 specific gravity, 163 °C open-cup flash point.
Dimethicone- ▸ Cosmetic vehicle / spreading agent: high spreadability and subtle skin lubricity with a longer-lasting film than 5 cSt
- ▸ Electrical insulating / dielectric & coolant fluid for transformers, condensers and breaker insulation
- ▸ Antifoam / defoamer in plastics and latex manufacture
- ▸ Mold release and resin slip additive — adds lubricity to synthetic resins
- ▸ Paint flow aid: low surface tension improves flow and reduces orange-peel
Don’t see your viscosity? We can custom-formulate silicone fluid to your target cSt — tell us your spec.
Not sure which grade? Silicone oil viscosity guide (5 to 500,000 cSt) · All silicone oils
- ▸ Safety Data Sheet (SDS) PDF · SDS
- ▸ Technical Data Sheet (TDS) PDF · TDS
- ▸ Typical Certificate of Analysis (CoA) PDF · COA
Values shown are typical for the current commercial grade. A lot-specific Certificate of Analysis accompanies every shipment; the grade-specific SDS is available on request.
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.
Cross-reference: comparable to XIAMETER PMX-200 Silicone Fluid 10 cSt (a Dow product): the same linear polydimethylsiloxane chemistry at the same nominal viscosity. RawSource is independent of Dow; confirm grade-critical specs against the RawSource TDS and lot CoA.
Silicone Oil 10 cSt is the broadest low-viscosity workhorse. It keeps the fast spreading and low surface tension of the thin grades but is less volatile and forms a more persistent film, so it carries the widest low-end application set: a cosmetic spreading vehicle, a dielectric and bath fluid, a defoamer, a mold-release and resin slip additive, and a paint flow aid.
Frequently Asked Questions
What is silicone oil 10 cSt used for?
10 cSt silicone oil (dimethicone / PDMS) is the broadest low-viscosity grade: a cosmetic spreading vehicle, a dielectric and bath fluid, a defoamer in plastics and latex, a mold-release and slip additive, and a paint flow aid. It spreads nearly as fast as 5 cSt but leaves a more persistent film.
Is 10 cSt silicone oil the same as dimethicone or PDMS?
Yes. Silicone oil, silicone fluid, dimethicone and PDMS all name the same linear polydimethylsiloxane (CAS 9006-65-9) — 10 cSt is the viscosity grade, not a different chemistry. Because PDMS is a polymer, properties are reported per grade rather than as one fixed molecular weight.
Is 10 cSt silicone oil flammable?
No. The 10 cSt grade has an open-cup flash point of about 163 °C, well above the 93 °C GHS flammable-liquid ceiling, and PDMS grades of 5 cSt and up are reported as not GHS-classified. The grade-specific SDS ships with every order.
What is the CAS number for silicone oil 10 cSt?
Silicone oil 10 cSt carries CAS 9006-65-9, with repeating-unit formula (C2H6OSi)n; some manufacturers list the equivalent trimethylsiloxy-terminated PDMS under CAS 63148-62-9. The cSt figure is the viscosity grade, not a separate substance — all dimethicone grades share the same CAS registry.
What packaging is 10 cSt silicone oil supplied in?
Bulk only: 55-gallon drums, 275-gallon IBC totes, and 5-gallon pails, with pallet and full-truck quantities quoted on request. A lot-specific Certificate of Analysis accompanies every shipment; the grade SDS is available on request. Submit an RFQ with your target volume and packaging.