Dimethicone- ▸ Lab bath / heat-transfer fluid: wide service range and low viscosity change with temperature; better convection than heavier grades
- ▸ Textile softening and water repellency: soft, velvety hand-feel while keeping fabric breathable
- ▸ Sewing-thread / yarn / spin-finish lubrication: lowers dynamic friction and reduces fiber breakage
- ▸ Mold release for rubber and plastic, and general heat-resistant lubrication of polymer parts
- ▸ Dielectric fluid, light damping medium 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 50 cSt sits at the light end of the mid band, where flow, fiber penetration and bath circulation matter more than film durability. It is favored for textile softening and thread/yarn lubrication, mold release, lab bath and heat-transfer duty, and as a dielectric and light damping medium.
Frequently Asked Questions
What is the viscosity of silicone oil 50 cSt?
Silicone Oil 50 cSt has a nominal kinematic viscosity of 50 centistokes, a low-to-medium-viscosity dimethicone (PDMS) fluid. Confirm the exact value and reference temperature on the lot CoA when ordering.
What is cSt in silicone oil?
cSt is centistokes, the unit of kinematic viscosity. For silicone oil (PDMS, CAS 9006-65-9) it indicates fluid thickness; 50 cSt is a relatively thin, free-flowing grade between the 10 cSt and 100 cSt fluids.
What is silicone oil 50 cSt used for?
Low-to-medium-viscosity PDMS grades like 50 cSt are used in lubrication, release, polish, and personal-care formulation where a thin, spreadable silicone with a little more body than 10 cSt is needed. Match the grade to your application.
What is the CAS number for silicone oil 50 cSt?
Silicone oil (dimethicone, PDMS) carries CAS 9006-65-9 with repeating-unit formula (C2H6OSi)n. The 50 cSt designation is the viscosity grade, not a separate CAS; all dimethicone grades share this number.
Can silicone oil 50 cSt be supplied in bulk?
Yes. RawSource supplies 50 cSt silicone oil in drum, tote, and IBC quantities to manufacturers. Request a bulk quote with your target volume and packaging; CoA and SDS are available on request.
