For a medium-viscosity silicone fluid, choose a product clearly labeled 100 cSt, such as Super Lube Silicone Oil or MicroLubrol 200 Fluid. Super Lube’s 4-ounce bottle suits smaller jobs, while its gallon container is intended for larger-volume use. MicroLubrol is another 100 cSt option, and its listed features include water repellency and use on metals, rubbers, and plastics. The selections below also include a lower-viscosity airgun oil and a 50 cSt fluid for buyers comparing nearby viscosity grades.
| Product | Listed viscosity | Best suited for |
|---|---|---|
| Super Lube Silicone Oil, 4 oz | 100 cSt | Small lubrication tasks |
| MicroLubrol 200 Fluid, 4 oz | 100 cSt | General-purpose silicone fluid |
| Super Lube Silicone Oil, 1 gal | 100 cSt | Higher-volume use |
| MicroLubrol 200 Fluid, 4 oz | 50 cSt | Buyers comparing a thinner fluid |
| Qucship Silicone Oil | Not stated | Airgun and airsoft maintenance |
Super Lube 100 cSt Silicone Oil

This 4-ounce Super Lube bottle is the most direct match for shoppers seeking 100 cSt silicone oil in a small container. Its listed features describe a medium-viscosity fluid that spreads over rubber, plastic, and metal. The manufacturer also lists resistance to oxidation and hydrolysis, plus performance across high- and low-temperature applications.
Best for: Buyers who need a modest amount of clearly identified 100 cSt oil for general lubrication. It was selected because its listed viscosity directly matches the search and its features cover several material types.
Limitation: The 4-ounce size may not suit repeated or high-volume use. Confirm that silicone oil is appropriate for the specific application before applying it.
MicroLubrol 200 Fluid, 100 cSt

MicroLubrol’s 4-ounce PDMS silicone oil is labeled 100 centistokes. The product information describes it as equivalent to Dow Corning Xiameter PMX-200 Silicone Fluid and DC 200 Fluid. It is also listed as anti-corrosion, water-repellent, and suitable for metals, rubbers, and plastics.
Best for: Buyers looking for a 100 cSt silicone fluid with stated material-use and water-repellency features. The 4-ounce bottle makes it a practical option for smaller jobs or a limited supply.
Limitation: The listed features do not specify a temperature range or a food-grade designation. Do not assume suitability for those requirements without checking product documentation.
Super Lube 100 cSt, One-Gallon Bottle

This Super Lube product lists the same 100 cSt viscosity and core features as the smaller bottle, but it comes in a one-gallon container. Its listed uses include automotive and machinery lubrication, and it is described as a clear coating for rubber, plastic, and metal surfaces. The features also mention oxidation resistance and resistance to hydrolysis.
Best for: Buyers who need a larger quantity of 100 cSt silicone oil for ongoing or multi-part use. Choose it over a small bottle when volume is the priority.
Limitation: A gallon is more than many occasional users need. Consider storage and expected consumption before choosing a bulk container.
MicroLubrol 200 Fluid, 50 cSt

This MicroLubrol fluid is 50 cSt, not 100 cSt, so it is a nearby alternative rather than an exact match. The product features identify it as pure PDMS silicone oil and list anti-corrosion and water-repellent properties. It is also described as safe for metals, rubbers, and plastics.
Best for: Buyers who have confirmed that a lower viscosity than 100 cSt is appropriate. It was included as a comparison option for shoppers deciding between fluid grades.
Limitation: Avoid this choice if your application specifically calls for 100 cSt. Viscosity differences can affect flow and the behavior of a lubricant in use.
Qucship Silicone Oil for Airguns

Qucship describes this product as 100% pure, low-viscosity silicone oil for airsoft and airgun maintenance. Its listed applications include compatible O-rings, seals, valves, nozzles, and other parts in gas blowback pistols, CO2 systems, and PCP airguns. The listing includes a 4-ounce bottle and a 1-ounce oiler.
Best for: Airgun and airsoft owners seeking a product positioned for seals and small mechanisms. Its targeted use cases make it more relevant to equipment maintenance than a general 100 cSt fluid.
Limitation: The provided product details do not state a cSt value. Choose a different product if the application requires a verified 100 cSt viscosity.
Buying Guide: How to Choose 100 cSt Silicone Oil
Does the product need to be exactly 100 cSt?
Check the viscosity on the product label or listing before buying. Centistokes measure kinematic viscosity; products with different cSt values are not automatically interchangeable. The 50 cSt MicroLubrol option is thinner than the 100 cSt choices, while Qucship does not state a cSt value in the supplied details.
How much silicone oil do you need?
Choose a small bottle for occasional maintenance or a limited task. A gallon container is more suitable when larger quantities are needed. Buying only the volume you expect to use can help avoid storing an unnecessarily large supply.
What materials and application should you check?
Match the product’s stated use to the surfaces and equipment involved. The listed Super Lube and MicroLubrol products mention rubber, plastic, and metal. Qucship is specifically described for airgun and airsoft components. Always check equipment instructions, especially for seals and mechanisms, before applying a lubricant.
Are temperature or food-grade requirements important?
Super Lube’s supplied features describe high- and low-temperature stability and identify the product as NSF certified food grade. Verify the exact product and its documentation for any regulated or application-specific requirement. Do not infer a certification or temperature range for other products unless the manufacturer states it.
Frequently Asked Questions
What does 100 cSt mean for silicone oil?
It is the oil’s kinematic viscosity rating, expressed in centistokes. Use the viscosity specified by the equipment maker or application instructions.
Is 50 cSt silicone oil the same as 100 cSt?
No. The listed viscosity differs, so the oils may flow differently. Use 50 cSt only when that viscosity is suitable for the intended application.
Can 100 cSt silicone oil be used on rubber and plastic?
Some products in this guide list rubber and plastic among suitable materials. Check the specific product information and equipment guidance before use.
Which option is best for a larger supply?
The Super Lube one-gallon bottle is the largest container among these selections and is labeled 100 cSt.