Premium Chemically Inert Silicone Oil for Professional Mold and Lubrication Applications

Silicone Oil 10 cSt is an extremely low-viscosity, colorless, and chemically inert polydimethylsiloxane (PDMS) fluid with a viscosity of 10 cSt and a density of 0.930 g/cm³ at 25°C. The product has a flash point of 162°C, a pour point of -65°C, and a surface tension of 20.1 mN/m. Thanks to its very low viscosity, Silicone Oil 10 cSt easily penetrates small crevices and surface structures, making it ideally suited as a thin release coating, an additive to fluidize silicone, and a penetrating lubricant for fine mechanisms. The 10 cSt viscosity offers maximum fluidity within the PDMS range for applications where the thinnest possible silicone film is desired.

Key Benefits

• Viscosity 10 cSt at 25°C: Extremely low-viscosity – penetrates fine structures and hard-to-reach surfaces that thicker grades cannot reach.
• Flash Point 162°C: Sufficient thermal stability for most industrial processing applications at room temperature and slightly elevated temperatures.
• Pour Point -65°C: Retains its liquid properties at very low temperatures – applicable in extreme cooling environments and winter outdoor applications.
• Low Surface Tension 20.1 mN/m: Wets surfaces quickly and completely – excellent spreading as a thin release coating on molds and dies.
• Chemically Non-Reactive: Does not react with addition or condensation silicones, most plastics and elastomers – safe as an additive without undesirable side reactions.
• Colorless and Odorless: Leaves no visible residue on treated surfaces – suitable for applications where aesthetic neutrality is required.

Typical Applications

• Thin release coating for rubber, polyurethane, epoxy, and metal injection molding – penetrates deeper into complex surface structures than higher viscosity grades.
• Additive for addition and condensation silicones (1–10%) to increase fluidity and facilitate de-aeration.
• Anti-foaming agent in non-aqueous systems – effective even in very small quantities.
• Penetrating lubricant for fine plastic and elastomer mechanisms.
• Electrical insulating agent in electrical and electronic equipment.
• Raw material for cosmetic formulations (INCI: Dimethicone).

Processing Instructions (as an additive in silicones):

1. Weigh the desired amount of component A of your silicone and add component B according to the mixing ratio information sheet.
2. Stir the mixture thoroughly.
3. Add the silicone oil to the silicone mixture and stir again. Vary between 1 and 10% oil based on the total weight. An addition of approximately 8% reduces the Shore A hardness by about 3 to 5 points.
4. Keep the percentage below 10%: more than 10% oil can unacceptably reduce the final strength of the cured silicone.
5. Process the mixture within the pot life of your silicone.

Manufactured by AToro B.V., specialist in high-quality silicones and silanes for industrial and technical applications, based in the Netherlands.

Professional Support

Are you unsure about the correct viscosity for your application, or do you have questions about the usability of silicone oil at elevated temperatures? Contact us for technical datasheets, processing manuals, or product advice.