Quick answer
This directory compares data-center liquid-cooling fluid suppliers (Arteco, BASF, Shell, Castrol, Valvoline, Dow, Ecolab, Dynalene, PFX Group, Chemours, Engineered Fluids, Submer) and car coolant makers (Prestone, Recochem, Old World Industries/PEAK, Zerex, CCI, Motorcraft). Every fact is cited on the supplier's profile page. These profiles are independent. We're not affiliated with or endorsed by any supplier listed.
Key takeaways
- Sourced facts only. Unknowns are shown as "not published".
- Most direct-to-chip fluids listed are PG25 (25% propylene glycol).
- Immersion fluids are dielectrics, a different category.
- For cars, choose by OEM spec, not by brand.
- Prices are not published.
Data-center coolant suppliers compared
| Supplier | HQ | Products | Base | Reported qualification |
|---|---|---|---|---|
| Arteco | Sint-Denijs-Westrem, Belgium (registered office: Schoten) | ZITREC EC line (launched 29 Apr 2025): MPG-, MEG- and water-based OAT direct-to-chip coolants, free of nitrites, borates and 2-EHA | MPG / MEG / water-based OAT | Arteco states ZITREC EC 20 is NVIDIA-qualified |
| BASF | Ludwigshafen, Germany | GLYTHERMIN data-center platform (launched 8 Oct 2026): GLYTHERMIN DC PG25 (ready-to-use 25% PG, >99.5% PG purity, hybrid inhibitors, fluores… | Propylene glycol (PG25) | GLYTHERMIN DC PG25 qualified as an NVIDIA DSX Ready coolant (secondary-loop, single-phase cold-plate) |
| Shell | London, United Kingdom | Shell DLC Fluid S3 (PG25, meets OCP PG25 specification, freeze protection −10 °C, green fluorescent dye, free of 2-EHA, borate and silicate)… | PG25 (DLC); hydrocarbon-based (immersion) | Shell DLC Fluid S3 reported as NVIDIA DSX Ready (Oct 2026); immersion fluids Intel Data Center Certified for Immersion Cooling (4th/5th Gen Xeon) |
| Castrol | Pangbourne, United Kingdom | Castrol ON PG25 (OAT) and PG25T (IAT), pre-diluted direct-to-chip fluids | Propylene glycol (PG25) | Castrol ON PG25 and PG25T announced as validated for NVIDIA AI infrastructure (18 Aug 2026) |
| Valvoline Global (Beyond by Valvoline) | Lexington, Kentucky, USA | "Beyond by Valvoline" platform (launched 11 Jun 2026): HPC Heat Transfer Fluid PG25 / PG25 Advanced (organic acid technology in a PG base), … | PG25 (DLC); dielectric (immersion) | NVIDIA qualification for a specific product: not published |
| Dow | Midland, Michigan, USA | DOWFROST LC 25: ready-to-use inhibited 25% propylene glycol for sealed direct-to-chip loops, use up to 90 °C, freeze protection −10 °C, yell… | Propylene glycol (PG25) | Dow has publicly stated DOWFROST LC qualified as NVIDIA DSX Ready |
| Ecolab | Saint Paul, Minnesota, USA | Propylene-glycol coolant for direct liquid cooling, with procurement, on-site filling, analysis and monitoring services. Product name: not p… | Propylene glycol | Ecolab states its PG coolant is qualified NVIDIA DSX Ready |
| Dynalene | 5250 West Coplay Road, Whitehall, Pennsylvania, USA | Dynalene PG-D25, a PG25 direct-to-chip fluid listed on the OCP Marketplace | Propylene glycol (PG25) | Specific NVIDIA qualification: not published |
| PFX Group (Solutherm) | Not published | SOLUTHERM OAT PG 25: ready-to-use 25% PG OAT fluid for secondary-loop direct-to-chip cooling | Propylene glycol (PG25, OAT) | Listed on the OCP Marketplace; named among NVIDIA DSX Ready coolant partners |
| Chemours | Wilmington, Delaware, USA | Opteon 2P50, a developmental two-phase immersion dielectric fluid (HFO-based) | Dielectric (two-phase immersion) | Chemours reports qualification work with Samsung SSDs and 2CRSi servers |
| Engineered Fluids | Tyler, Texas, USA | ElectroCool single-phase immersion dielectric coolants | Dielectric (single-phase immersion) | Not published |
| Submer | Barcelona, Spain | SmartCoolant synthetic single-phase immersion fluid (alongside immersion systems) | Synthetic dielectric (single-phase immersion) | Not published |
Car coolant makers
| Supplier | HQ | Products | Base | Reported qualification |
|---|---|---|---|---|
| Valvoline Global (Beyond by Valvoline) | Lexington, Kentucky, USA | "Beyond by Valvoline" platform (launched 11 Jun 2026): HPC Heat Transfer Fluid PG25 / PG25 Advanced (organic acid technology in a PG base), … | PG25 (DLC); dielectric (immersion) | NVIDIA qualification for a specific product: not published |
| Prestone | Not published | Antifreeze/coolant and other car-care fluids (see the brand site for current lines) | Automotive coolants | n/a |
| Recochem | Montreal, Quebec, Canada | Antifreeze/coolant, windshield washer fluid, DEF and other fluids. Brands acquired from KIK in June 2024 include Prestone, Holts, Redex and … | Automotive coolants | n/a |
| Old World Industries (PEAK) | 3100 Sanders Road, Suite 400, Northbrook, Illinois, USA | PEAK antifreeze/coolant, including vehicle-specific lines | Automotive coolants | n/a |
| Zerex (Valvoline Global) | Lexington, Kentucky, USA (Valvoline Global, per its launch release) | Zerex antifreeze/coolant lines, including OEM-specific formulations (see brand site) | Automotive coolants | n/a |
| CCI Corporation | Japan | Engine coolants, brake fluid and other automotive fluids; GOLDEN CRUISER coolant line | Automotive coolants | n/a |
| Motorcraft (Ford) | Not published here (Ford Motor Company brand) | Motorcraft Orange antifreeze/coolant to Ford spec WSS-M97B44-D (ethylene glycol, OAT); prediluted VC-3DIL-B meets WSS-M97B44-D2. Ford states… | Ethylene glycol (OAT) | OEM fluid |
For cars, the right choice is the coolant that meets your owner's manual spec. See what coolant does my car need?.
Comparing data-center fluids?
Open comparator →How to choose a data-center coolant supplier
- Start with your cold-plate and CDU vendors' approved fluid lists.
- Shortlist fluids with the relevant public qualifications (see DSX Ready list).
- Compare inhibitor chemistry, ready-to-use format and maintenance limits.
- Evaluate sampling, top-up and service programs. See CDU maintenance.
- Confirm regional supply and lead times.
Methodology
We list suppliers whose coolant products and facts we could verify from the company's own pages or reputable trade press (checked October 2026). Inclusion isn't an endorsement and doesn't involve any payment. Corrections: see contact.
Frequently asked questions
Who makes data-center coolant?
Companies with published direct-to-chip or immersion fluids include Arteco, BASF, Shell, Castrol, Valvoline, Dow, Ecolab, Dynalene, PFX Group, Chemours, Engineered Fluids and Submer.
Are these suppliers partners of Coolant.com?
No. These are independent profiles.