Dimethicone- ▸ Mold release for rubber, plastic and metal parts and digital-printing equipment — durable, persistent film
- ▸ Paint polishes, paint conditioners and plastic / vinyl care products — gloss and water repellency
- ▸ Food-grade (NSF/USDA H1) incidental-contact lubricant and defoamer for processing and packaging equipment
- ▸ Heat-transfer / thermal-bath oil and heat-resistant lubricant for polymer parts
- ▸ Personal-care emollient and barrier in creams, lotions, conditioners and makeup
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 350 cSt is the general-purpose grade and the one manufacturers tie to paint/plastic care and to NSF H1 food-contact registration. Its higher mid viscosity gives a durable, persistent release film with little migration, so it is used for mold release, paint polishes and plastic-care products, food-grade incidental-contact lubrication, and personal-care emolliency.
Frequently Asked Questions
What is silicone oil 350 cSt used for?
Silicone Oil 350 cSt is a medium-to-high-viscosity PDMS (dimethicone) fluid used in lubrication, release, polish, damping, and formulation applications needing more body than thin grades but easier flow than the heavy 1,000+ cSt fluids. Match the viscosity grade to your specific application.
What does cSt mean in silicone oil?
cSt is centistokes, the unit of kinematic viscosity. For silicone oil (PDMS, CAS 9006-65-9) it indicates fluid thickness; 350 cSt sits in the medium-to-high range between the 100 cSt and 1,000 cSt grades.
What is the viscosity specification of silicone oil 350 cSt?
It is dimethicone (PDMS) at a nominal kinematic viscosity of 350 centistokes. Confirm the exact value and reference temperature on the lot CoA when ordering, as actual grade values are reported per lot.
What is the CAS number for silicone oil 350 cSt?
Silicone oil (dimethicone, PDMS) carries CAS 9006-65-9 with repeating-unit formula (C2H6OSi)n. The 350 cSt designation is the viscosity grade, not a separate CAS; all dimethicone grades share this number.
Can silicone oil 350 cSt be supplied in bulk?
Yes. RawSource supplies 350 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.
