Quick answer
Immersion cooling fluid suppliers in our sourced profiles: Engineered Fluids, Submer, Shell, Chemours. Single-phase fluids stay liquid; two-phase fluids boil and condense. Fewer qualifications are published than for PG25, so ask for hardware compatibility data. Request quotes with the form below.
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Sourcing Single-phase immersion fluid? Tell us the fluid, volume and region once. With your consent we pass the request to up to three relevant suppliers. No cost to request.
Request supplier quotesKey takeaways
- Single-phase: hydrocarbon or synthetic dielectric fluids.
- Two-phase: engineered fluids that boil at low temperature.
- Ask for hardware and material compatibility data.
- Quote requests are free and go to up to three suppliers.
Supplier shortlist
| Supplier | Product(s) | Publicly reported qualification | HQ |
|---|---|---|---|
| Engineered Fluids | ElectroCool single-phase immersion dielectric coolants | Not published | Tyler, Texas, USA |
| Submer | SmartCoolant synthetic single-phase immersion fluid (alongside immersion systems) | Not published | Barcelona, Spain |
| Shell | Shell DLC Fluid S3 (PG25, meets OCP PG25 specification, freeze protection −10 °C, green fluorescent dye, free of 2-EHA, borate and silicate); single-phase immersion cooling fluids | Shell DLC Fluid S3 reported as NVIDIA DSX Ready (Oct 2026); immersion fluids Intel Data Center Certified for Immersion Cooling (4th/5th Gen Xeon) | London, United Kingdom |
| Chemours | Opteon 2P50, a developmental two-phase immersion dielectric fluid (HFO-based) | Chemours reports qualification work with Samsung SSDs and 2CRSi servers | Wilmington, Delaware, USA |
Taken from our sourced supplier profiles (October 2026). Open a profile for the citations. "Not published" means we could not find a public source.
Single-phase vs two-phase
In single-phase immersion the fluid stays liquid and is pumped through a heat exchanger. In two-phase immersion the fluid boils on the hot components and condenses on a coil. In our profiles, Engineered Fluids, Submer and Shell offer single-phase fluids, and Chemours's Opteon 2P50 is a developmental two-phase fluid. More in direct-to-chip vs immersion.
Comparing data-center fluids?
Open comparator →What to ask an immersion fluid supplier
- Server or component certifications (for example Intel's immersion certification, reported for Shell).
- Material compatibility with cables, seals and labels.
- Dielectric strength, viscosity, flash point and expected life.
- Volumes per tank, lead time and take-back or recycling.
Comparing with cold-plate fluids? See PG25 coolant suppliers and the comparator.
Frequently asked questions
Who makes ElectroCool?
Engineered Fluids, based in Tyler, Texas, per our sourced profile.
Is two-phase immersion fluid widely available?
Chemours describes Opteon 2P50 as developmental. Ask suppliers about current availability.
Related guides
Request supplier quotes
Buying PG25 or an immersion fluid for a liquid-cooled deployment? Tell us the volume, fluid and region, and we will pass your request to up to three relevant suppliers so they can quote you directly. It is free for buyers, and there is no obligation.